TSK-1009: automatic formatting number 2

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/impl/TaskanaHistoryEngineImpl.java

@@ -29,7 +29,6 @@ public class TaskanaHistoryEngineImpl implements TaskanaHistoryEngine {
   protected SqlSessionManager sessionManager;
   protected TransactionFactory transactionFactory;
   protected TaskanaHistory taskanaHistoryService;
-
   TaskanaEngineConfiguration taskanaEngineConfiguration;
 
   protected TaskanaHistoryEngineImpl(TaskanaEngineConfiguration taskanaEngineConfiguration)
@@ -58,51 +57,6 @@ public class TaskanaHistoryEngineImpl implements TaskanaHistoryEngine {
     return this.taskanaHistoryService;
   }
 
-  /**
-   * Open the connection to the database. to be called at the begin of each Api call that accesses
-   * the database
-   *
-   * @throws SQLException thrown if the connection could not be opened.
-   */
-  void openConnection() throws SQLException {
-    initSqlSession();
-    this.sessionManager.getConnection().setSchema(taskanaEngineConfiguration.getSchemaName());
-  }
-
-  /**
-   * Returns the database connection into the pool. In the case of nested calls, simply pops the
-   * latest session from the session stack. Closes the connection if the session stack is empty. In
-   * mode AUTOCOMMIT commits before the connection is closed. To be called at the end of each Api
-   * call that accesses the database
-   */
-  void returnConnection() {
-    popSessionFromStack();
-    if (getSessionStack().isEmpty()
-        && this.sessionManager != null
-        && this.sessionManager.isManagedSessionStarted()) {
-      try {
-        this.sessionManager.commit();
-      } catch (Exception e) {
-        //ignore
-      }
-      this.sessionManager.close();
-    }
-  }
-
-  /** Initializes the SqlSessionManager. */
-  void initSqlSession() {
-    this.sessionManager.startManagedSession();
-  }
-
-  /**
-   * retrieve the SqlSession used by taskana.
-   *
-   * @return the myBatis SqlSession object used by taskana
-   */
-  SqlSession getSqlSession() {
-    return this.sessionManager;
-  }
-
   protected SqlSessionManager createSqlSessionManager() {
     Environment environment =
         new Environment(
@@ -158,6 +112,51 @@ public class TaskanaHistoryEngineImpl implements TaskanaHistoryEngine {
     return stack.peek();
   }
 
+  /**
+   * Open the connection to the database. to be called at the begin of each Api call that accesses
+   * the database
+   *
+   * @throws SQLException thrown if the connection could not be opened.
+   */
+  void openConnection() throws SQLException {
+    initSqlSession();
+    this.sessionManager.getConnection().setSchema(taskanaEngineConfiguration.getSchemaName());
+  }
+
+  /**
+   * Returns the database connection into the pool. In the case of nested calls, simply pops the
+   * latest session from the session stack. Closes the connection if the session stack is empty. In
+   * mode AUTOCOMMIT commits before the connection is closed. To be called at the end of each Api
+   * call that accesses the database
+   */
+  void returnConnection() {
+    popSessionFromStack();
+    if (getSessionStack().isEmpty()
+        && this.sessionManager != null
+        && this.sessionManager.isManagedSessionStarted()) {
+      try {
+        this.sessionManager.commit();
+      } catch (Exception e) {
+        // ignore
+      }
+      this.sessionManager.close();
+    }
+  }
+
+  /** Initializes the SqlSessionManager. */
+  void initSqlSession() {
+    this.sessionManager.startManagedSession();
+  }
+
+  /**
+   * retrieve the SqlSession used by taskana.
+   *
+   * @return the myBatis SqlSession object used by taskana
+   */
+  SqlSession getSqlSession() {
+    return this.sessionManager;
+  }
+
   /**
    * creates the MyBatis transaction factory.
    *

history/taskana-simplehistory-provider/src/main/java/pro/taskana/simplehistory/query/HistoryQueryColumnName.java

@@ -3,8 +3,8 @@ package pro.taskana.simplehistory.query;
 import pro.taskana.QueryColumnName;
 
 /**
- * Enum containing the column names for
+ * Enum containing the column names for {@link
- * {@link pro.taskana.simplehistory.impl.mappings.HistoryQueryMapper#queryHistoryColumnValues}.
+ * pro.taskana.simplehistory.impl.mappings.HistoryQueryMapper#queryHistoryColumnValues}.
  *
  * @author bv
  */

history/taskana-simplehistory-provider/src/test/java/acceptance/AbstractAccTest.java

@@ -21,13 +21,18 @@ import pro.taskana.simplehistory.impl.SimpleHistoryServiceImpl;
 /** Set up database for tests. */
 public class AbstractAccTest {
 
-  public static SimpleHistoryServiceImpl historyService;
-  protected static TaskanaEngineConfiguration taskanaEngineConfiguration;
-  private static DataSource dataSource = null;
-  private static String schemaName = null;
   private static final Logger LOGGER = LoggerFactory.getLogger(AbstractAccTest.class);
   private static final int POOL_TIME_TO_WAIT = 50;
 
+  @SuppressWarnings("checkstyle:DeclarationOrder")
+  public static SimpleHistoryServiceImpl historyService;
+
+  @SuppressWarnings("checkstyle:DeclarationOrder")
+  protected static TaskanaEngineConfiguration taskanaEngineConfiguration;
+
+  private static DataSource dataSource = null;
+  private static String schemaName = null;
+
   protected AbstractAccTest() {
     // not called
   }

history/taskana-simplehistory-provider/src/test/resources/log4j2-test.xml

@@ -3,12 +3,12 @@
 <Configuration status="WARN">
   <Appenders>
     <Console name="Console" target="SYSTEM_OUT">
-			<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
+      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
     </Console>
   </Appenders>
   <Loggers>
     <Root level="info">
-			<AppenderRef ref="Console" />
+      <AppenderRef ref="Console"/>
     </Root>
   </Loggers>
 </Configuration>

lib/taskana-cdi/src/main/resources/META-INF/beans.xml

@@ -1,5 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<beans xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+<beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+  xmlns="http://java.sun.com/xml/ns/javaee"
   xsi:schemaLocation="
       http://java.sun.com/xml/ns/javaee
       http://java.sun.com/xml/ns/javaee/beans_1_0.xsd">

lib/taskana-cdi/src/test/java/pro/taskana/RestApplication.java

@@ -3,8 +3,6 @@ package pro.taskana;
 import javax.ws.rs.ApplicationPath;
 import javax.ws.rs.core.Application;
 
-/**
+/** TODO Why does this test exist?. */
- * TODO Why does this test exist?.
- */
 @ApplicationPath("/rest")
 public class RestApplication extends Application {}

lib/taskana-core/src/main/java/pro/taskana/AccessItemQueryColumnName.java

@@ -1,8 +1,8 @@
 package pro.taskana;
 
 /**
- * Enum containing the column names for
+ * Enum containing the column names for {@link
- * {@link pro.taskana.mappings.QueryMapper#queryWorkbasketAccessItemColumnValues}.
+ * pro.taskana.mappings.QueryMapper#queryWorkbasketAccessItemColumnValues}.
  *
  * @author jsa
  */

lib/taskana-core/src/main/java/pro/taskana/ClassificationQueryColumnName.java

@@ -1,8 +1,8 @@
 package pro.taskana;
 
 /**
- * Enum containing the column names for
+ * Enum containing the column names for {@link
- * {@link pro.taskana.mappings.QueryMapper#queryClassificationColumnValues}.
+ * pro.taskana.mappings.QueryMapper#queryClassificationColumnValues}.
  *
  * @author jsa
  */

lib/taskana-core/src/main/java/pro/taskana/KeyDomain.java

@@ -33,6 +33,11 @@ public class KeyDomain {
     this.domain = domain;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(key, domain);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -45,11 +50,6 @@ public class KeyDomain {
     return Objects.equals(key, other.key) && Objects.equals(domain, other.domain);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(key, domain);
-  }
-
   @Override
   public String toString() {
     return "KeyDomain [key=" + key + ", domain=" + domain + "]";

lib/taskana-core/src/main/java/pro/taskana/ObjectReference.java

@@ -60,6 +60,11 @@ public class ObjectReference {
     this.value = value;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(id, company, system, systemInstance, type, value);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -77,11 +82,6 @@ public class ObjectReference {
         && Objects.equals(value, other.value);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(id, company, system, systemInstance, type, value);
-  }
-
   @Override
   public String toString() {
     return "ObjectReference ["

lib/taskana-core/src/main/java/pro/taskana/TaskQueryColumnName.java

@@ -1,8 +1,8 @@
 package pro.taskana;
 
 /**
- * Enum containing the column names for
+ * Enum containing the column names for {@link
- * {@link pro.taskana.mappings.QueryMapper#queryTaskColumnValues(pro.taskana.impl.TaskQueryImpl)}.
+ * pro.taskana.mappings.QueryMapper#queryTaskColumnValues(pro.taskana.impl.TaskQueryImpl)}.
  *
  * @author jsa
  */

lib/taskana-core/src/main/java/pro/taskana/TimeInterval.java

@@ -52,6 +52,11 @@ public class TimeInterval {
     this.end = end;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(begin, end);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -64,11 +69,6 @@ public class TimeInterval {
     return Objects.equals(begin, other.begin) && Objects.equals(end, other.end);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(begin, end);
-  }
-
   @Override
   public String toString() {
     return "TimeInterval [" + "begin=" + this.begin + ", end=" + this.end + "]";

lib/taskana-core/src/main/java/pro/taskana/history/events/task/TaskEvent.java

@@ -57,14 +57,6 @@ public class TaskEvent extends TaskanaHistoryEvent {
     }
   }
 
-  public String getTaskId() {
-    return taskId;
-  }
-
-  public void setTaskId(String taskId) {
-    this.taskId = taskId;
-  }
-
   public String getBusinessProcessId() {
     return businessProcessId;
   }
@@ -81,6 +73,14 @@ public class TaskEvent extends TaskanaHistoryEvent {
     this.parentBusinessProcessId = parentBusinessProcessId;
   }
 
+  public String getTaskId() {
+    return taskId;
+  }
+
+  public void setTaskId(String taskId) {
+    this.taskId = taskId;
+  }
+
   public String getDomain() {
     return domain;
   }
@@ -97,30 +97,6 @@ public class TaskEvent extends TaskanaHistoryEvent {
     this.workbasketKey = workbasketKey;
   }
 
-  public String getTaskClassificationCategory() {
-    return taskClassificationCategory;
-  }
-
-  public void setTaskClassificationCategory(String taskClassificationCategory) {
-    this.taskClassificationCategory = taskClassificationCategory;
-  }
-
-  public String getTaskClassificationKey() {
-    return taskClassificationKey;
-  }
-
-  public void setTaskClassificationKey(String taskClassificationKey) {
-    this.taskClassificationKey = taskClassificationKey;
-  }
-
-  public String getAttachmentClassificationKey() {
-    return attachmentClassificationKey;
-  }
-
-  public void setAttachmentClassificationKey(String attachmentClassificationKey) {
-    this.attachmentClassificationKey = attachmentClassificationKey;
-  }
-
   public String getPorCompany() {
     return porCompany;
   }
@@ -161,6 +137,30 @@ public class TaskEvent extends TaskanaHistoryEvent {
     this.porValue = porValue;
   }
 
+  public String getTaskClassificationKey() {
+    return taskClassificationKey;
+  }
+
+  public void setTaskClassificationKey(String taskClassificationKey) {
+    this.taskClassificationKey = taskClassificationKey;
+  }
+
+  public String getTaskClassificationCategory() {
+    return taskClassificationCategory;
+  }
+
+  public void setTaskClassificationCategory(String taskClassificationCategory) {
+    this.taskClassificationCategory = taskClassificationCategory;
+  }
+
+  public String getAttachmentClassificationKey() {
+    return attachmentClassificationKey;
+  }
+
+  public void setAttachmentClassificationKey(String attachmentClassificationKey) {
+    this.attachmentClassificationKey = attachmentClassificationKey;
+  }
+
   @Override
   public String toString() {
     return "TaskEvent [taskId= "

lib/taskana-core/src/main/java/pro/taskana/impl/AbstractWorkbasketAccessItemQueryImpl.java

@@ -63,11 +63,6 @@ abstract class AbstractWorkbasketAccessItemQueryImpl<
     return _this();
   }
 
-  @Override
-  public Q orderById(SortDirection sortDirection) {
-    return addOrderCriteria("ID", sortDirection);
-  }
-
   @Override
   public Q orderByWorkbasketId(SortDirection sortDirection) {
     return addOrderCriteria("WORKBASKET_ID", sortDirection);
@@ -78,6 +73,11 @@ abstract class AbstractWorkbasketAccessItemQueryImpl<
     return addOrderCriteria("ACCESS_ID", sortDirection);
   }
 
+  @Override
+  public Q orderById(SortDirection sortDirection) {
+    return addOrderCriteria("ID", sortDirection);
+  }
+
   @Override
   public List<T> list() {
     LOGGER.debug("entry to list(), this = {}", _this());

lib/taskana-core/src/main/java/pro/taskana/impl/AttachmentImpl.java

@@ -75,16 +75,6 @@ public class AttachmentImpl implements Attachment {
     this.classificationSummary = classificationSummary;
   }
 
-  // auxiliary method to enable MyBatis access to classificationSummary
-  public ClassificationSummaryImpl getClassificationSummaryImpl() {
-    return (ClassificationSummaryImpl) classificationSummary;
-  }
-
-  // auxiliary method to enable MyBatis access to classificationSummary
-  public void setClassificationSummaryImpl(ClassificationSummaryImpl classificationSummary) {
-    this.classificationSummary = classificationSummary;
-  }
-
   @Override
   public ObjectReference getObjectReference() {
     return objectReference;
@@ -142,6 +132,16 @@ public class AttachmentImpl implements Attachment {
     return summary;
   }
 
+  // auxiliary method to enable MyBatis access to classificationSummary
+  public ClassificationSummaryImpl getClassificationSummaryImpl() {
+    return (ClassificationSummaryImpl) classificationSummary;
+  }
+
+  // auxiliary method to enable MyBatis access to classificationSummary
+  public void setClassificationSummaryImpl(ClassificationSummaryImpl classificationSummary) {
+    this.classificationSummary = classificationSummary;
+  }
+
   @Override
   public int hashCode() {
     return Objects.hash(

lib/taskana-core/src/main/java/pro/taskana/impl/AttachmentSummaryImpl.java

@@ -73,19 +73,6 @@ public class AttachmentSummaryImpl implements AttachmentSummary {
     this.modified = modified;
   }
 
-  /*
-   * (non-Javadoc)
-   * @see pro.taskana.impl.AttachmentSummary#getClassification()
-   */
-  @Override
-  public ClassificationSummary getClassificationSummary() {
-    return classificationSummary;
-  }
-
-  public void setClassificationSummary(ClassificationSummary classificationSummary) {
-    this.classificationSummary = classificationSummary;
-  }
-
   /*
    * (non-Javadoc)
    * @see pro.taskana.AttachmentSummary#getObjectReference()
@@ -108,6 +95,32 @@ public class AttachmentSummaryImpl implements AttachmentSummary {
     return channel;
   }
 
+  /*
+   * (non-Javadoc)
+   * @see pro.taskana.impl.AttachmentSummary#getClassification()
+   */
+  @Override
+  public ClassificationSummary getClassificationSummary() {
+    return classificationSummary;
+  }
+
+  public void setClassificationSummary(ClassificationSummary classificationSummary) {
+    this.classificationSummary = classificationSummary;
+  }
+
+  /*
+   * (non-Javadoc)
+   * @see pro.taskana.impl.AttachmentSummary#getReceived()
+   */
+  @Override
+  public Instant getReceived() {
+    return received;
+  }
+
+  public void setReceived(Instant received) {
+    this.received = received;
+  }
+
   public void setChannel(String channel) {
     this.channel = channel;
   }
@@ -122,6 +135,12 @@ public class AttachmentSummaryImpl implements AttachmentSummary {
     this.classificationSummary = classificationSummary;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        id, taskId, created, modified, classificationSummary, objectReference, channel, received);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -141,25 +160,6 @@ public class AttachmentSummaryImpl implements AttachmentSummary {
         && Objects.equals(received, other.received);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id, taskId, created, modified, classificationSummary, objectReference, channel, received);
-  }
-
-  /*
-   * (non-Javadoc)
-   * @see pro.taskana.impl.AttachmentSummary#getReceived()
-   */
-  @Override
-  public Instant getReceived() {
-    return received;
-  }
-
-  public void setReceived(Instant received) {
-    this.received = received;
-  }
-
   @Override
   public String toString() {
     return "AttachmentSummaryImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/ClassificationImpl.java

@@ -115,10 +115,6 @@ public class ClassificationImpl extends ClassificationSummaryImpl implements Cla
     return summary;
   }
 
-  protected boolean canEqual(Object other) {
-    return (other instanceof ClassificationImpl);
-  }
-
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -144,6 +140,10 @@ public class ClassificationImpl extends ClassificationSummaryImpl implements Cla
         super.hashCode(), isValidInDomain, created, modified, description, applicationEntryPoint);
   }
 
+  protected boolean canEqual(Object other) {
+    return (other instanceof ClassificationImpl);
+  }
+
   @Override
   public String toString() {
     return "ClassificationImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/ClassificationQueryImpl.java

@@ -324,11 +324,6 @@ public class ClassificationQueryImpl implements ClassificationQuery {
     return addOrderCriteria("DOMAIN", sortDirection);
   }
 
-  @Override
-  public ClassificationQuery orderByPriority(SortDirection sortDirection) {
-    return addOrderCriteria("PRIORITY", sortDirection);
-  }
-
   @Override
   public ClassificationQuery orderByName(SortDirection sortDirection) {
     return addOrderCriteria("NAME", sortDirection);
@@ -339,6 +334,11 @@ public class ClassificationQueryImpl implements ClassificationQuery {
     return addOrderCriteria("SERVICE_LEVEL", sortDirection);
   }
 
+  @Override
+  public ClassificationQuery orderByPriority(SortDirection sortDirection) {
+    return addOrderCriteria("PRIORITY", sortDirection);
+  }
+
   @Override
   public ClassificationQuery orderByApplicationEntryPoint(SortDirection sortDirection) {
     return addOrderCriteria("APPLICATION_ENTRY_POINT", sortDirection);

lib/taskana-core/src/main/java/pro/taskana/impl/ClassificationServiceImpl.java

@@ -50,6 +50,128 @@ public class ClassificationServiceImpl implements ClassificationService {
     this.taskMapper = taskMapper;
   }
 
+  @Override
+  public Classification getClassification(String key, String domain)
+      throws ClassificationNotFoundException {
+    LOGGER.debug("entry to getClassification(key = {}, domain = {})", key, domain);
+    if (key == null) {
+      throw new ClassificationNotFoundException(
+          null, domain, "Classification for null key and domain " + domain + " was not found.");
+    }
+
+    Classification result = null;
+    try {
+      taskanaEngine.openConnection();
+      result = classificationMapper.findByKeyAndDomain(key, domain);
+      if (result == null) {
+        result = classificationMapper.findByKeyAndDomain(key, "");
+        if (result == null) {
+          throw new ClassificationNotFoundException(
+              key, domain, "Classification for key = " + key + " and master domain was not found");
+        }
+      }
+      return result;
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from getClassification(). Returning result {} ", result);
+    }
+  }
+
+  @Override
+  public Classification getClassification(String id) throws ClassificationNotFoundException {
+    if (id == null) {
+      throw new ClassificationNotFoundException(null, "Classification for null id is invalid.");
+    }
+    LOGGER.debug("entry to getClassification(id = {})", id);
+    Classification result = null;
+    try {
+      taskanaEngine.openConnection();
+      result = classificationMapper.findById(id);
+      if (result == null) {
+        throw new ClassificationNotFoundException(
+            id, "Classification for id " + id + " was not found");
+      }
+      return result;
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from getClassification(). Returning result {} ", result);
+    }
+  }
+
+  @Override
+  public void deleteClassification(String classificationId)
+      throws ClassificationInUseException, ClassificationNotFoundException, NotAuthorizedException {
+    LOGGER.debug("entry to deleteClassification(id = {})", classificationId);
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
+    try {
+      taskanaEngine.openConnection();
+      Classification classification = this.classificationMapper.findById(classificationId);
+      if (classification == null) {
+        throw new ClassificationNotFoundException(
+            classificationId, "The classification \"" + classificationId + "\" wasn't found");
+      }
+
+      if (classification.getDomain().equals("")) {
+        // master mode - delete all associated classifications in every domain.
+        List<ClassificationSummary> classificationsInDomain =
+            createClassificationQuery().keyIn(classification.getKey()).list();
+        for (ClassificationSummary classificationInDomain : classificationsInDomain) {
+          if (!"".equals(classificationInDomain.getDomain())) {
+            deleteClassification(classificationInDomain.getId());
+          }
+        }
+      }
+
+      List<ClassificationSummary> childClassifications =
+          createClassificationQuery().parentIdIn(classificationId).list();
+      for (ClassificationSummary child : childClassifications) {
+        this.deleteClassification(child.getId());
+      }
+
+      try {
+        this.classificationMapper.deleteClassification(classificationId);
+      } catch (PersistenceException e) {
+        if (isReferentialIntegrityConstraintViolation(e)) {
+          throw new ClassificationInUseException(
+              String.format(
+                  "The classification id = \"%s\" and key = \"%s\" in domain = \"%s\" "
+                      + "is in use and cannot be deleted. There are either tasks or "
+                      + "attachments associated with the classification.",
+                  classificationId, classification.getKey(), classification.getDomain()),
+              e.getCause());
+        }
+      }
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from deleteClassification()");
+    }
+  }
+
+  @Override
+  public void deleteClassification(String classificationKey, String domain)
+      throws ClassificationInUseException, ClassificationNotFoundException, NotAuthorizedException {
+    LOGGER.debug("entry to deleteClassification(key = {}, domain = {})", classificationKey, domain);
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
+    try {
+      taskanaEngine.openConnection();
+      Classification classification =
+          this.classificationMapper.findByKeyAndDomain(classificationKey, domain);
+      if (classification == null) {
+        throw new ClassificationNotFoundException(
+            classificationKey,
+            domain,
+            "The classification \""
+                + classificationKey
+                + "\" wasn't found in the domain "
+                + domain);
+      }
+      deleteClassification(classification.getId());
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from deleteClassification(key,domain)");
+    }
+  }
+
   @Override
   public Classification createClassification(Classification classification)
       throws ClassificationAlreadyExistException, NotAuthorizedException, DomainNotFoundException,
@@ -129,54 +251,6 @@ public class ClassificationServiceImpl implements ClassificationService {
     }
   }
 
-  @Override
-  public Classification getClassification(String id) throws ClassificationNotFoundException {
-    if (id == null) {
-      throw new ClassificationNotFoundException(null, "Classification for null id is invalid.");
-    }
-    LOGGER.debug("entry to getClassification(id = {})", id);
-    Classification result = null;
-    try {
-      taskanaEngine.openConnection();
-      result = classificationMapper.findById(id);
-      if (result == null) {
-        throw new ClassificationNotFoundException(
-            id, "Classification for id " + id + " was not found");
-      }
-      return result;
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from getClassification(). Returning result {} ", result);
-    }
-  }
-
-  @Override
-  public Classification getClassification(String key, String domain)
-      throws ClassificationNotFoundException {
-    LOGGER.debug("entry to getClassification(key = {}, domain = {})", key, domain);
-    if (key == null) {
-      throw new ClassificationNotFoundException(
-          null, domain, "Classification for null key and domain " + domain + " was not found.");
-    }
-
-    Classification result = null;
-    try {
-      taskanaEngine.openConnection();
-      result = classificationMapper.findByKeyAndDomain(key, domain);
-      if (result == null) {
-        result = classificationMapper.findByKeyAndDomain(key, "");
-        if (result == null) {
-          throw new ClassificationNotFoundException(
-              key, domain, "Classification for key = " + key + " and master domain was not found");
-        }
-      }
-      return result;
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from getClassification(). Returning result {} ", result);
-    }
-  }
-
   @Override
   public ClassificationQuery createClassificationQuery() {
     return new ClassificationQueryImpl(taskanaEngine);
@@ -191,80 +265,6 @@ public class ClassificationServiceImpl implements ClassificationService {
     return classification;
   }
 
-  @Override
-  public void deleteClassification(String classificationKey, String domain)
-      throws ClassificationInUseException, ClassificationNotFoundException, NotAuthorizedException {
-    LOGGER.debug("entry to deleteClassification(key = {}, domain = {})", classificationKey, domain);
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
-    try {
-      taskanaEngine.openConnection();
-      Classification classification =
-          this.classificationMapper.findByKeyAndDomain(classificationKey, domain);
-      if (classification == null) {
-        throw new ClassificationNotFoundException(
-            classificationKey,
-            domain,
-            "The classification \""
-                + classificationKey
-                + "\" wasn't found in the domain "
-                + domain);
-      }
-      deleteClassification(classification.getId());
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from deleteClassification(key,domain)");
-    }
-  }
-
-  @Override
-  public void deleteClassification(String classificationId)
-      throws ClassificationInUseException, ClassificationNotFoundException, NotAuthorizedException {
-    LOGGER.debug("entry to deleteClassification(id = {})", classificationId);
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
-    try {
-      taskanaEngine.openConnection();
-      Classification classification = this.classificationMapper.findById(classificationId);
-      if (classification == null) {
-        throw new ClassificationNotFoundException(
-            classificationId, "The classification \"" + classificationId + "\" wasn't found");
-      }
-
-      if (classification.getDomain().equals("")) {
-        // master mode - delete all associated classifications in every domain.
-        List<ClassificationSummary> classificationsInDomain =
-            createClassificationQuery().keyIn(classification.getKey()).list();
-        for (ClassificationSummary classificationInDomain : classificationsInDomain) {
-          if (!"".equals(classificationInDomain.getDomain())) {
-            deleteClassification(classificationInDomain.getId());
-          }
-        }
-      }
-
-      List<ClassificationSummary> childClassifications =
-          createClassificationQuery().parentIdIn(classificationId).list();
-      for (ClassificationSummary child : childClassifications) {
-        this.deleteClassification(child.getId());
-      }
-
-      try {
-        this.classificationMapper.deleteClassification(classificationId);
-      } catch (PersistenceException e) {
-        if (isReferentialIntegrityConstraintViolation(e)) {
-          throw new ClassificationInUseException(
-              String.format(
-                  "The classification id = \"%s\" and key = \"%s\" in domain = \"%s\" "
-                      + "is in use and cannot be deleted. There are either tasks or "
-                      + "attachments associated with the classification.",
-                  classificationId, classification.getKey(), classification.getDomain()),
-              e.getCause());
-        }
-      }
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from deleteClassification()");
-    }
-  }
-
   private static void validateServiceLevel(String serviceLevel) throws InvalidArgumentException {
     try {
       Duration.parse(serviceLevel);

lib/taskana-core/src/main/java/pro/taskana/impl/ClassificationSummaryImpl.java

@@ -28,24 +28,6 @@ public class ClassificationSummaryImpl implements ClassificationSummary {
 
   ClassificationSummaryImpl() {}
 
-  @Override
-  public int getPriority() {
-    return priority;
-  }
-
-  public void setPriority(int priority) {
-    this.priority = priority;
-  }
-
-  @Override
-  public String getServiceLevel() {
-    return serviceLevel;
-  }
-
-  public void setServiceLevel(String serviceLevel) {
-    this.serviceLevel = serviceLevel;
-  }
-
   @Override
   public String getId() {
     return id;
@@ -114,8 +96,18 @@ public class ClassificationSummaryImpl implements ClassificationSummary {
     return parentKey;
   }
 
-  public void setParentKey(String parentKey) {
+  @Override
-    this.parentKey = parentKey;
+  public String getServiceLevel() {
+    return serviceLevel;
+  }
+
+  @Override
+  public int getPriority() {
+    return priority;
+  }
+
+  public void setPriority(int priority) {
+    this.priority = priority;
   }
 
   @Override
@@ -190,6 +182,41 @@ public class ClassificationSummaryImpl implements ClassificationSummary {
     this.custom8 = custom8;
   }
 
+  public void setServiceLevel(String serviceLevel) {
+    this.serviceLevel = serviceLevel;
+  }
+
+  public void setParentKey(String parentKey) {
+    this.parentKey = parentKey;
+  }
+
+  protected boolean canEqual(Object other) {
+    return (other instanceof ClassificationSummaryImpl);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        id,
+        key,
+        category,
+        type,
+        domain,
+        name,
+        parentId,
+        parentKey,
+        priority,
+        serviceLevel,
+        custom1,
+        custom2,
+        custom3,
+        custom4,
+        custom5,
+        custom6,
+        custom7,
+        custom8);
+  }
+
   @Override
   public boolean equals(Object obj) {
 
@@ -224,33 +251,6 @@ public class ClassificationSummaryImpl implements ClassificationSummary {
         && Objects.equals(custom8, other.custom8);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id,
-        key,
-        category,
-        type,
-        domain,
-        name,
-        parentId,
-        parentKey,
-        priority,
-        serviceLevel,
-        custom1,
-        custom2,
-        custom3,
-        custom4,
-        custom5,
-        custom6,
-        custom7,
-        custom8);
-  }
-
-  protected boolean canEqual(Object other) {
-    return (other instanceof ClassificationSummaryImpl);
-  }
-
   @Override
   public String toString() {
     return "ClassificationSummaryImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/ObjectReferenceQueryImpl.java

@@ -159,6 +159,20 @@ public class ObjectReferenceQueryImpl implements ObjectReferenceQuery {
     }
   }
 
+  @Override
+  public long count() {
+    LOGGER.debug("entry to count(), this = {}", this);
+    Long rowCount = null;
+    try {
+      taskanaEngine.openConnection();
+      rowCount = taskanaEngine.getSqlSession().selectOne(LINK_TO_COUNTER, this);
+      return (rowCount == null) ? 0L : rowCount;
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from count(). Returning result {} ", rowCount);
+    }
+  }
+
   public String[] getCompany() {
     return company;
   }
@@ -203,20 +217,6 @@ public class ObjectReferenceQueryImpl implements ObjectReferenceQuery {
     return columnName;
   }
 
-  @Override
-  public long count() {
-    LOGGER.debug("entry to count(), this = {}", this);
-    Long rowCount = null;
-    try {
-      taskanaEngine.openConnection();
-      rowCount = taskanaEngine.getSqlSession().selectOne(LINK_TO_COUNTER, this);
-      return (rowCount == null) ? 0L : rowCount;
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from count(). Returning result {} ", rowCount);
-    }
-  }
-
   private ObjectReferenceQuery addOrderCriteria(String colName, SortDirection sortDirection) {
     String orderByDirection =
         " " + (sortDirection == null ? SortDirection.ASCENDING : sortDirection);

lib/taskana-core/src/main/java/pro/taskana/impl/TaskImpl.java

@@ -93,6 +93,11 @@ public class TaskImpl implements Task {
     this.externalId = externalId;
   }
 
+  @Override
+  public String getCreator() {
+    return creator;
+  }
+
   @Override
   public Instant getCreated() {
     return created;
@@ -159,15 +164,6 @@ public class TaskImpl implements Task {
     this.name = name;
   }
 
-  @Override
-  public String getCreator() {
-    return creator;
-  }
-
-  public void setCreator(String creator) {
-    this.creator = creator;
-  }
-
   @Override
   public String getDescription() {
     return description;
@@ -178,16 +174,6 @@ public class TaskImpl implements Task {
     this.description = description;
   }
 
-  @Override
-  public String getNote() {
-    return note;
-  }
-
-  @Override
-  public void setNote(String note) {
-    this.note = note;
-  }
-
   @Override
   public int getPriority() {
     return priority;
@@ -215,16 +201,29 @@ public class TaskImpl implements Task {
     this.classificationSummary = classificationSummary;
   }
 
-  @Override
+  public void setCreator(String creator) {
-  public String getClassificationCategory() {
+    this.creator = creator;
-    return this.classificationSummary == null ? null : this.classificationSummary.getCategory();
   }
 
-  public void setClassificationCategory(String classificationCategory) {
+  public CallbackState getCallbackState() {
+    return callbackState;
+  }
+
+  public void setCallbackState(CallbackState callbackState) {
+    this.callbackState = callbackState;
+  }
+
+  public String getClassificationKey() {
+    return classificationSummary == null ? null : classificationSummary.getKey();
+  }
+
+  @Override
+  public void setClassificationKey(String classificationKey) {
     if (this.classificationSummary == null) {
       this.classificationSummary = new ClassificationSummaryImpl();
     }
-    ((ClassificationSummaryImpl) this.classificationSummary).setCategory(classificationCategory);
+
+    ((ClassificationSummaryImpl) this.classificationSummary).setKey(classificationKey);
   }
 
   @Override
@@ -344,14 +343,6 @@ public class TaskImpl implements Task {
     this.callbackInfo = callbackInfo;
   }
 
-  public CallbackState getCallbackState() {
-    return callbackState;
-  }
-
-  public void setCallbackState(CallbackState callbackState) {
-    this.callbackState = callbackState;
-  }
-
   @Override
   public String getCustomAttribute(String number) throws InvalidArgumentException {
     int num = 0;
@@ -491,12 +482,14 @@ public class TaskImpl implements Task {
     return attachments;
   }
 
-  public void setAttachments(List<Attachment> attachments) {
+  @Override
-    if (attachments != null) {
+  public String getNote() {
-      this.attachments = attachments;
+    return note;
-    } else if (this.attachments == null) {
-      this.attachments = new ArrayList<>();
   }
+
+  @Override
+  public void setNote(String note) {
+    this.note = note;
   }
 
   @Override
@@ -549,17 +542,38 @@ public class TaskImpl implements Task {
     return taskSummary;
   }
 
-  public String getClassificationKey() {
+  @Override
-    return classificationSummary == null ? null : classificationSummary.getKey();
+  public Attachment removeAttachment(String attachmentId) {
+    Attachment result = null;
+    Iterator<Attachment> i = attachments.iterator();
+    while (i.hasNext()) {
+      Attachment attachment = i.next();
+      if (attachment.getId().equals(attachmentId) && attachments.remove(attachment)) {
+        result = attachment;
+        break;
+      }
+    }
+    return result;
   }
 
   @Override
-  public void setClassificationKey(String classificationKey) {
+  public String getClassificationCategory() {
+    return this.classificationSummary == null ? null : this.classificationSummary.getCategory();
+  }
+
+  public void setClassificationCategory(String classificationCategory) {
     if (this.classificationSummary == null) {
       this.classificationSummary = new ClassificationSummaryImpl();
     }
+    ((ClassificationSummaryImpl) this.classificationSummary).setCategory(classificationCategory);
+  }
 
-    ((ClassificationSummaryImpl) this.classificationSummary).setKey(classificationKey);
+  public void setAttachments(List<Attachment> attachments) {
+    if (attachments != null) {
+      this.attachments = attachments;
+    } else if (this.attachments == null) {
+      this.attachments = new ArrayList<>();
+    }
   }
 
   public ClassificationSummaryImpl getClassificationSummaryImpl() {
@@ -707,17 +721,50 @@ public class TaskImpl implements Task {
   }
 
   @Override
-  public Attachment removeAttachment(String attachmentId) {
+  public int hashCode() {
-    Attachment result = null;
+    return Objects.hash(
-    Iterator<Attachment> i = attachments.iterator();
+        id,
-    while (i.hasNext()) {
+        externalId,
-      Attachment attachment = i.next();
+        created,
-      if (attachment.getId().equals(attachmentId) && attachments.remove(attachment)) {
+        claimed,
-        result = attachment;
+        completed,
-        break;
+        modified,
-      }
+        planned,
-    }
+        due,
-    return result;
+        name,
+        creator,
+        description,
+        note,
+        priority,
+        state,
+        classificationSummary,
+        workbasketSummary,
+        businessProcessId,
+        parentBusinessProcessId,
+        owner,
+        primaryObjRef,
+        isRead,
+        isTransferred,
+        customAttributes,
+        callbackInfo,
+        callbackState,
+        attachments,
+        custom1,
+        custom2,
+        custom3,
+        custom4,
+        custom5,
+        custom6,
+        custom7,
+        custom8,
+        custom9,
+        custom10,
+        custom11,
+        custom12,
+        custom13,
+        custom14,
+        custom15,
+        custom16);
   }
 
   @Override
@@ -773,53 +820,6 @@ public class TaskImpl implements Task {
         && Objects.equals(custom16, other.custom16);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id,
-        externalId,
-        created,
-        claimed,
-        completed,
-        modified,
-        planned,
-        due,
-        name,
-        creator,
-        description,
-        note,
-        priority,
-        state,
-        classificationSummary,
-        workbasketSummary,
-        businessProcessId,
-        parentBusinessProcessId,
-        owner,
-        primaryObjRef,
-        isRead,
-        isTransferred,
-        customAttributes,
-        callbackInfo,
-        callbackState,
-        attachments,
-        custom1,
-        custom2,
-        custom3,
-        custom4,
-        custom5,
-        custom6,
-        custom7,
-        custom8,
-        custom9,
-        custom10,
-        custom11,
-        custom12,
-        custom13,
-        custom14,
-        custom15,
-        custom16);
-  }
-
   @Override
   public String toString() {
     return "TaskImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/TaskQueryImpl.java

@@ -161,14 +161,14 @@ public class TaskQueryImpl implements TaskQuery {
   }
 
   @Override
-  public TaskQuery idIn(String... taskIds) {
+  public TaskQuery nameIn(String... names) {
-    this.taskIds = taskIds;
+    this.nameIn = names;
     return this;
   }
 
   @Override
-  public TaskQuery nameIn(String... names) {
+  public TaskQuery nameLike(String... names) {
-    this.nameIn = names;
+    this.nameLike = toUpperCopy(names);
     return this;
   }
 
@@ -184,12 +184,6 @@ public class TaskQueryImpl implements TaskQuery {
     return this;
   }
 
-  @Override
-  public TaskQuery nameLike(String... names) {
-    this.nameLike = toUpperCopy(names);
-    return this;
-  }
-
   @Override
   public TaskQuery creatorIn(String... creators) {
     this.creatorIn = creators;
@@ -202,6 +196,175 @@ public class TaskQueryImpl implements TaskQuery {
     return this;
   }
 
+  @Override
+  public TaskQuery descriptionLike(String... description) {
+    this.description = toUpperCopy(description);
+    return this;
+  }
+
+  @Override
+  public TaskQuery noteLike(String... note) {
+    this.noteLike = toUpperCopy(note);
+    return this;
+  }
+
+  @Override
+  public TaskQuery priorityIn(int... priorities) {
+    this.priority = priorities;
+    return this;
+  }
+
+  @Override
+  public TaskQuery stateIn(TaskState... states) {
+    this.stateIn = states;
+    return this;
+  }
+
+  @Override
+  public TaskQuery stateNotIn(TaskState... states) {
+    // No benefit in introducing a new variable
+    List<TaskState> stateIn = new LinkedList<>(Arrays.asList(TaskState.values()));
+    for (TaskState state : states) {
+      stateIn.remove(state);
+    }
+    this.stateIn = stateIn.toArray(new TaskState[0]);
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationKeyIn(String... classificationKey) {
+    this.classificationKeyIn = classificationKey;
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationKeyNotIn(String... classificationKeys) {
+    this.classificationKeyNotIn = classificationKeys;
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationKeyLike(String... classificationKeys) {
+    this.classificationKeyLike = toUpperCopy(classificationKeys);
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationIdIn(String... classificationId) {
+    this.classificationIdIn = classificationId;
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationCategoryIn(String... classificationCategories) {
+    this.classificationCategoryIn = classificationCategories;
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationCategoryLike(String... classificationCategories) {
+    this.classificationCategoryLike = toUpperCopy(classificationCategories);
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationNameIn(String... classificationNames) {
+    joinWithClassifications = true;
+    this.classificationNameIn = classificationNames;
+    return this;
+  }
+
+  @Override
+  public TaskQuery classificationNameLike(String... classificationNames) {
+    joinWithClassifications = true;
+    this.classificationNameLike = toUpperCopy(classificationNames);
+    return this;
+  }
+
+  @Override
+  public TaskQuery workbasketKeyDomainIn(KeyDomain... workbasketIdentifiers) {
+    this.workbasketKeyDomainIn = workbasketIdentifiers;
+    return this;
+  }
+
+  @Override
+  public TaskQuery workbasketIdIn(String... workbasketIds) {
+    this.workbasketIdIn = workbasketIds;
+    return this;
+  }
+
+  @Override
+  public TaskQuery ownerIn(String... owners) {
+    this.ownerIn = owners;
+    return this;
+  }
+
+  @Override
+  public TaskQuery ownerLike(String... owners) {
+    this.ownerLike = toUpperCopy(owners);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceCompanyIn(String... companies) {
+    this.porCompanyIn = companies;
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceCompanyLike(String... company) {
+    this.porCompanyLike = toUpperCopy(company);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceSystemIn(String... systems) {
+    this.porSystemIn = systems;
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceSystemLike(String... system) {
+    this.porSystemLike = toUpperCopy(system);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceSystemInstanceIn(String... systemInstances) {
+    this.porSystemInstanceIn = systemInstances;
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceSystemInstanceLike(String... systemInstance) {
+    this.porSystemInstanceLike = toUpperCopy(systemInstance);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceTypeIn(String... types) {
+    this.porTypeIn = types;
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceTypeLike(String... type) {
+    this.porTypeLike = toUpperCopy(type);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceValueLike(String... value) {
+    this.porValueLike = toUpperCopy(value);
+    return this;
+  }
+
+  @Override
+  public TaskQuery primaryObjectReferenceValueIn(String... values) {
+    this.porValueIn = values;
+    return this;
+  }
+
   @Override
   public TaskQuery createdWithin(TimeInterval... intervals) {
     this.createdIn = intervals;
@@ -268,144 +431,6 @@ public class TaskQueryImpl implements TaskQuery {
     return this;
   }
 
-  @Override
-  public TaskQuery descriptionLike(String... description) {
-    this.description = toUpperCopy(description);
-    return this;
-  }
-
-  @Override
-  public TaskQuery noteLike(String... note) {
-    this.noteLike = toUpperCopy(note);
-    return this;
-  }
-
-  @Override
-  public TaskQuery priorityIn(int... priorities) {
-    this.priority = priorities;
-    return this;
-  }
-
-  @Override
-  public TaskQuery workbasketKeyDomainIn(KeyDomain... workbasketIdentifiers) {
-    this.workbasketKeyDomainIn = workbasketIdentifiers;
-    return this;
-  }
-
-  @Override
-  public TaskQuery workbasketIdIn(String... workbasketIds) {
-    this.workbasketIdIn = workbasketIds;
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationKeyIn(String... classificationKey) {
-    this.classificationKeyIn = classificationKey;
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationKeyNotIn(String... classificationKeys) {
-    this.classificationKeyNotIn = classificationKeys;
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationKeyLike(String... classificationKeys) {
-    this.classificationKeyLike = toUpperCopy(classificationKeys);
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationIdIn(String... classificationId) {
-    this.classificationIdIn = classificationId;
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationCategoryIn(String... classificationCategories) {
-    this.classificationCategoryIn = classificationCategories;
-    return this;
-  }
-
-  @Override
-  public TaskQuery classificationCategoryLike(String... classificationCategories) {
-    this.classificationCategoryLike = toUpperCopy(classificationCategories);
-    return this;
-  }
-
-  @Override
-  public TaskQuery ownerIn(String... owners) {
-    this.ownerIn = owners;
-    return this;
-  }
-
-  @Override
-  public TaskQuery ownerLike(String... owners) {
-    this.ownerLike = toUpperCopy(owners);
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceCompanyIn(String... companies) {
-    this.porCompanyIn = companies;
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceCompanyLike(String... company) {
-    this.porCompanyLike = toUpperCopy(company);
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceSystemIn(String... systems) {
-    this.porSystemIn = systems;
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceSystemLike(String... system) {
-    this.porSystemLike = toUpperCopy(system);
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceSystemInstanceIn(String... systemInstances) {
-    this.porSystemInstanceIn = systemInstances;
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceSystemInstanceLike(String... systemInstance) {
-    this.porSystemInstanceLike = toUpperCopy(systemInstance);
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceTypeIn(String... types) {
-    this.porTypeIn = types;
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceTypeLike(String... type) {
-    this.porTypeLike = toUpperCopy(type);
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceValueIn(String... values) {
-    this.porValueIn = values;
-    return this;
-  }
-
-  @Override
-  public TaskQuery primaryObjectReferenceValueLike(String... value) {
-    this.porValueLike = toUpperCopy(value);
-    return this;
-  }
-
   @Override
   public TaskQuery readEquals(Boolean isRead) {
     this.isRead = isRead;
@@ -442,29 +467,6 @@ public class TaskQueryImpl implements TaskQuery {
     return this;
   }
 
-  @Override
-  public TaskQuery stateIn(TaskState... states) {
-    this.stateIn = states;
-    return this;
-  }
-
-  @Override
-  public TaskQuery stateNotIn(TaskState... states) {
-    // No benefit in introducing a new variable
-    List<TaskState> stateIn = new LinkedList<>(Arrays.asList(TaskState.values()));
-    for (TaskState state : states) {
-      stateIn.remove(state);
-    }
-    this.stateIn = stateIn.toArray(new TaskState[0]);
-    return this;
-  }
-
-  @Override
-  public TaskQuery callbackStateIn(CallbackState... states) {
-    this.callbackStateIn = states;
-    return this;
-  }
-
   @Override
   public TaskQuery customAttributeIn(String number, String... strings)
       throws InvalidArgumentException {
@@ -640,6 +642,20 @@ public class TaskQueryImpl implements TaskQuery {
     return this;
   }
 
+  @Override
+  public TaskQuery attachmentClassificationNameIn(String... attachmentClassificationName) {
+    joinWithAttachmentClassifications = true;
+    this.attachmentClassificationNameIn = attachmentClassificationName;
+    return this;
+  }
+
+  @Override
+  public TaskQuery attachmentClassificationNameLike(String... attachmentClassificationName) {
+    joinWithAttachmentClassifications = true;
+    this.attachmentClassificationNameLike = toUpperCopy(attachmentClassificationName);
+    return this;
+  }
+
   @Override
   public TaskQuery attachmentChannelIn(String... attachmentChannel) {
     joinWithAttachments = true;
@@ -681,31 +697,31 @@ public class TaskQueryImpl implements TaskQuery {
   }
 
   @Override
-  public TaskQuery classificationNameIn(String... classificationNames) {
+  public TaskQuery callbackStateIn(CallbackState... states) {
-    joinWithClassifications = true;
+    this.callbackStateIn = states;
-    this.classificationNameIn = classificationNames;
     return this;
   }
 
   @Override
-  public TaskQuery classificationNameLike(String... classificationNames) {
+  public ObjectReferenceQuery createObjectReferenceQuery() {
-    joinWithClassifications = true;
+    return new ObjectReferenceQueryImpl(taskanaEngine);
-    this.classificationNameLike = toUpperCopy(classificationNames);
-    return this;
   }
 
   @Override
-  public TaskQuery attachmentClassificationNameIn(String... attachmentClassificationName) {
+  public TaskQuery orderByBusinessProcessId(SortDirection sortDirection) {
-    joinWithAttachmentClassifications = true;
+    return addOrderCriteria("BUSINESS_PROCESS_ID", sortDirection);
-    this.attachmentClassificationNameIn = attachmentClassificationName;
-    return this;
   }
 
   @Override
-  public TaskQuery attachmentClassificationNameLike(String... attachmentClassificationName) {
+  public TaskQuery orderByClaimed(SortDirection sortDirection) {
-    joinWithAttachmentClassifications = true;
+    return addOrderCriteria("CLAIMED", sortDirection);
-    this.attachmentClassificationNameLike = toUpperCopy(attachmentClassificationName);
+  }
-    return this;
+
+  @Override
+  public TaskQuery orderByClassificationKey(SortDirection sortDirection) {
+    return DB.DB2.dbProductId.equals(getDatabaseId())
+        ? addOrderCriteria("TCLASSIFICATION_KEY", sortDirection)
+        : addOrderCriteria("t.CLASSIFICATION_KEY", sortDirection);
   }
 
   @Override
@@ -718,19 +734,13 @@ public class TaskQueryImpl implements TaskQuery {
   }
 
   @Override
-  public TaskQuery orderByAttachmentClassificationName(SortDirection sortDirection) {
+  public TaskQuery orderByCompleted(SortDirection sortDirection) {
-    joinWithAttachments = true;
+    return addOrderCriteria("COMPLETED", sortDirection);
-    addAttachmentClassificationNameToSelectClauseForOrdering = true;
-    return DB.DB2.dbProductId.equals(getDatabaseId())
-        ? addOrderCriteria("ACNAME", sortDirection)
-        : addOrderCriteria("ac.NAME", sortDirection);
   }
 
   @Override
-  public TaskQuery orderByClassificationKey(SortDirection sortDirection) {
+  public TaskQuery orderByCreated(SortDirection sortDirection) {
-    return DB.DB2.dbProductId.equals(getDatabaseId())
+    return addOrderCriteria("CREATED", sortDirection);
-        ? addOrderCriteria("TCLASSIFICATION_KEY", sortDirection)
-        : addOrderCriteria("t.CLASSIFICATION_KEY", sortDirection);
   }
 
   @Override
@@ -738,11 +748,6 @@ public class TaskQueryImpl implements TaskQuery {
     return addOrderCriteria("DOMAIN", sortDirection);
   }
 
-  @Override
-  public TaskQuery orderByPlanned(SortDirection sortDirection) {
-    return addOrderCriteria("PLANNED", sortDirection);
-  }
-
   @Override
   public TaskQuery orderByDue(SortDirection sortDirection) {
     return addOrderCriteria("DUE", sortDirection);
@@ -763,11 +768,26 @@ public class TaskQueryImpl implements TaskQuery {
     return addOrderCriteria("CREATOR", sortDirection);
   }
 
+  @Override
+  public TaskQuery orderByNote(SortDirection sortDirection) {
+    return addOrderCriteria("NOTE", sortDirection);
+  }
+
   @Override
   public TaskQuery orderByOwner(SortDirection sortDirection) {
     return addOrderCriteria("OWNER", sortDirection);
   }
 
+  @Override
+  public TaskQuery orderByParentBusinessProcessId(SortDirection sortDirection) {
+    return addOrderCriteria("PARENT_BUSINESS_PROCESS_ID", sortDirection);
+  }
+
+  @Override
+  public TaskQuery orderByPlanned(SortDirection sortDirection) {
+    return addOrderCriteria("PLANNED", sortDirection);
+  }
+
   @Override
   public TaskQuery orderByPrimaryObjectReferenceCompany(SortDirection sortDirection) {
     return addOrderCriteria("POR_COMPANY", sortDirection);
@@ -808,55 +828,6 @@ public class TaskQueryImpl implements TaskQuery {
     return addOrderCriteria("WORKBASKET_KEY", sortDirection);
   }
 
-  @Override
-  public TaskQuery orderByWorkbasketId(SortDirection sortDirection) {
-    return addOrderCriteria("WORKBASKET_ID", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByAttachmentClassificationKey(SortDirection sortDirection) {
-    joinWithAttachments = true;
-    addAttachmentColumnsToSelectClauseForOrdering = true;
-    return DB.DB2.dbProductId.equals(getDatabaseId())
-        ? addOrderCriteria("ACLASSIFICATION_KEY", sortDirection)
-        : addOrderCriteria("a.CLASSIFICATION_KEY", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByAttachmentClassificationId(SortDirection sortDirection) {
-    joinWithAttachments = true;
-    addAttachmentColumnsToSelectClauseForOrdering = true;
-    return DB.DB2.dbProductId.equals(getDatabaseId())
-        ? addOrderCriteria("ACLASSIFICATION_ID", sortDirection)
-        : addOrderCriteria("a.CLASSIFICATION_ID", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByAttachmentChannel(SortDirection sortDirection) {
-    joinWithAttachments = true;
-    addAttachmentColumnsToSelectClauseForOrdering = true;
-    return addOrderCriteria("CHANNEL", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByAttachmentReference(SortDirection sortDirection) {
-    joinWithAttachments = true;
-    addAttachmentColumnsToSelectClauseForOrdering = true;
-    return addOrderCriteria("REF_VALUE", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByAttachmentReceived(SortDirection sortDirection) {
-    joinWithAttachments = true;
-    addAttachmentColumnsToSelectClauseForOrdering = true;
-    return addOrderCriteria("RECEIVED", sortDirection);
-  }
-
-  @Override
-  public TaskQuery orderByNote(SortDirection sortDirection) {
-    return addOrderCriteria("NOTE", sortDirection);
-  }
-
   @Override
   public TaskQuery orderByCustomAttribute(String number, SortDirection sortDirection)
       throws InvalidArgumentException {
@@ -911,33 +882,62 @@ public class TaskQueryImpl implements TaskQuery {
   }
 
   @Override
-  public TaskQuery orderByBusinessProcessId(SortDirection sortDirection) {
+  public TaskQuery idIn(String... taskIds) {
-    return addOrderCriteria("BUSINESS_PROCESS_ID", sortDirection);
+    this.taskIds = taskIds;
+    return this;
   }
 
   @Override
-  public TaskQuery orderByClaimed(SortDirection sortDirection) {
+  public TaskQuery orderByWorkbasketId(SortDirection sortDirection) {
-    return addOrderCriteria("CLAIMED", sortDirection);
+    return addOrderCriteria("WORKBASKET_ID", sortDirection);
   }
 
   @Override
-  public TaskQuery orderByCompleted(SortDirection sortDirection) {
+  public TaskQuery orderByAttachmentClassificationKey(SortDirection sortDirection) {
-    return addOrderCriteria("COMPLETED", sortDirection);
+    joinWithAttachments = true;
+    addAttachmentColumnsToSelectClauseForOrdering = true;
+    return DB.DB2.dbProductId.equals(getDatabaseId())
+        ? addOrderCriteria("ACLASSIFICATION_KEY", sortDirection)
+        : addOrderCriteria("a.CLASSIFICATION_KEY", sortDirection);
   }
 
   @Override
-  public TaskQuery orderByCreated(SortDirection sortDirection) {
+  public TaskQuery orderByAttachmentClassificationName(SortDirection sortDirection) {
-    return addOrderCriteria("CREATED", sortDirection);
+    joinWithAttachments = true;
+    addAttachmentClassificationNameToSelectClauseForOrdering = true;
+    return DB.DB2.dbProductId.equals(getDatabaseId())
+        ? addOrderCriteria("ACNAME", sortDirection)
+        : addOrderCriteria("ac.NAME", sortDirection);
   }
 
   @Override
-  public TaskQuery orderByParentBusinessProcessId(SortDirection sortDirection) {
+  public TaskQuery orderByAttachmentClassificationId(SortDirection sortDirection) {
-    return addOrderCriteria("PARENT_BUSINESS_PROCESS_ID", sortDirection);
+    joinWithAttachments = true;
+    addAttachmentColumnsToSelectClauseForOrdering = true;
+    return DB.DB2.dbProductId.equals(getDatabaseId())
+        ? addOrderCriteria("ACLASSIFICATION_ID", sortDirection)
+        : addOrderCriteria("a.CLASSIFICATION_ID", sortDirection);
   }
 
   @Override
-  public ObjectReferenceQuery createObjectReferenceQuery() {
+  public TaskQuery orderByAttachmentChannel(SortDirection sortDirection) {
-    return new ObjectReferenceQueryImpl(taskanaEngine);
+    joinWithAttachments = true;
+    addAttachmentColumnsToSelectClauseForOrdering = true;
+    return addOrderCriteria("CHANNEL", sortDirection);
+  }
+
+  @Override
+  public TaskQuery orderByAttachmentReference(SortDirection sortDirection) {
+    joinWithAttachments = true;
+    addAttachmentColumnsToSelectClauseForOrdering = true;
+    return addOrderCriteria("REF_VALUE", sortDirection);
+  }
+
+  @Override
+  public TaskQuery orderByAttachmentReceived(SortDirection sortDirection) {
+    joinWithAttachments = true;
+    addAttachmentColumnsToSelectClauseForOrdering = true;
+    return addOrderCriteria("RECEIVED", sortDirection);
   }
 
   @Override
@@ -1004,14 +1004,6 @@ public class TaskQueryImpl implements TaskQuery {
     }
   }
 
-  public String getLinkToMapperScript() {
-    return DB.DB2.dbProductId.equals(getDatabaseId()) ? LINK_TO_MAPPER_DB2 : LINK_TO_MAPPER;
-  }
-
-  public String getLinkToCounterTaskScript() {
-    return DB.DB2.dbProductId.equals(getDatabaseId()) ? LINK_TO_COUNTER_DB2 : LINK_TO_COUNTER;
-  }
-
   @Override
   public List<String> listValues(TaskQueryColumnName columnName, SortDirection sortDirection) {
     LOGGER.debug("Entry to listValues(dbColumnName={}) this = {}", columnName, this);
@@ -1093,6 +1085,14 @@ public class TaskQueryImpl implements TaskQuery {
     }
   }
 
+  public String getLinkToMapperScript() {
+    return DB.DB2.dbProductId.equals(getDatabaseId()) ? LINK_TO_MAPPER_DB2 : LINK_TO_MAPPER;
+  }
+
+  public String getLinkToCounterTaskScript() {
+    return DB.DB2.dbProductId.equals(getDatabaseId()) ? LINK_TO_COUNTER_DB2 : LINK_TO_COUNTER;
+  }
+
   public boolean isUseDistinctKeyword() {
     return useDistinctKeyword;
   }

lib/taskana-core/src/main/java/pro/taskana/impl/TaskServiceImpl.java

@@ -59,6 +59,7 @@ import pro.taskana.mappings.TaskMapper;
 import pro.taskana.security.CurrentUserContext;
 
 /** This is the implementation of TaskService. */
+@SuppressWarnings("checkstyle:OverloadMethodsDeclarationOrder")
 public class TaskServiceImpl implements TaskService {
 
   private static final String IS_ALREADY_CLAIMED_BY = " is already claimed by ";
@@ -115,42 +116,6 @@ public class TaskServiceImpl implements TaskService {
     return claim(taskId, false);
   }
 
-  private Task claim(String taskId, boolean forceClaim)
-      throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
-      NotAuthorizedException {
-    String userId = CurrentUserContext.getUserid();
-    LOGGER.debug(
-        "entry to claim(id = {}, userId = {}, forceClaim = {})", taskId, userId, forceClaim);
-    TaskImpl task = null;
-    try {
-      taskanaEngine.openConnection();
-      task = (TaskImpl) getTask(taskId);
-      TaskState state = task.getState();
-      if (state == TaskState.COMPLETED) {
-        throw new InvalidStateException(TASK_WITH_ID + taskId + IS_ALREADY_COMPLETED);
-      }
-      if (state == TaskState.CLAIMED && !forceClaim && !task.getOwner().equals(userId)) {
-        throw new InvalidOwnerException(
-            TASK_WITH_ID + taskId + IS_ALREADY_CLAIMED_BY + task.getOwner() + ".");
-      }
-      Instant now = Instant.now();
-      task.setOwner(userId);
-      task.setModified(now);
-      task.setClaimed(now);
-      task.setRead(true);
-      task.setState(TaskState.CLAIMED);
-      taskMapper.update(task);
-      LOGGER.debug("Task '{}' claimed by user '{}'.", taskId, userId);
-      if (HistoryEventProducer.isHistoryEnabled()) {
-        historyEventProducer.createEvent(new ClaimedEvent(task));
-      }
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from claim()");
-    }
-    return task;
-  }
-
   @Override
   public Task forceClaim(String taskId)
       throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
@@ -165,45 +130,6 @@ public class TaskServiceImpl implements TaskService {
     return this.cancelClaim(taskId, false);
   }
 
-  private Task cancelClaim(String taskId, boolean forceUnclaim)
-      throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
-      NotAuthorizedException {
-    String userId = CurrentUserContext.getUserid();
-    LOGGER.debug(
-        "entry to cancelClaim(taskId = {}), userId = {}, forceUnclaim = {})",
-        taskId,
-        userId,
-        forceUnclaim);
-    TaskImpl task = null;
-    try {
-      taskanaEngine.openConnection();
-      task = (TaskImpl) getTask(taskId);
-      TaskState state = task.getState();
-      if (state == TaskState.COMPLETED) {
-        throw new InvalidStateException(TASK_WITH_ID + taskId + IS_ALREADY_COMPLETED);
-      }
-      if (state == TaskState.CLAIMED && !forceUnclaim && !userId.equals(task.getOwner())) {
-        throw new InvalidOwnerException(
-            TASK_WITH_ID + taskId + IS_ALREADY_CLAIMED_BY + task.getOwner() + ".");
-      }
-      Instant now = Instant.now();
-      task.setOwner(null);
-      task.setModified(now);
-      task.setClaimed(null);
-      task.setRead(true);
-      task.setState(TaskState.READY);
-      taskMapper.update(task);
-      LOGGER.debug("Task '{}' unclaimed by user '{}'.", taskId, userId);
-      if (HistoryEventProducer.isHistoryEnabled()) {
-        historyEventProducer.createEvent(new ClaimCancelledEvent(task));
-      }
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from cancelClaim()");
-    }
-    return task;
-  }
-
   @Override
   public Task forceCancelClaim(String taskId)
       throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
@@ -218,57 +144,6 @@ public class TaskServiceImpl implements TaskService {
     return completeTask(taskId, false);
   }
 
-  private Task completeTask(String taskId, boolean isForced)
-      throws TaskNotFoundException, InvalidOwnerException, InvalidStateException,
-      NotAuthorizedException {
-    String userId = CurrentUserContext.getUserid();
-    LOGGER.debug(
-        "entry to completeTask(id = {}, userId = {}, isForced = {})", taskId, userId, isForced);
-    TaskImpl task = null;
-    try {
-      taskanaEngine.openConnection();
-      task = (TaskImpl) this.getTask(taskId);
-
-      if (task.getState() == TaskState.COMPLETED) {
-        return task;
-      }
-
-      // check pre-conditions for non-forced invocation
-      if (!isForced) {
-        if (task.getClaimed() == null || task.getState() != TaskState.CLAIMED) {
-          throw new InvalidStateException(TASK_WITH_ID + taskId + " has to be claimed before.");
-        } else if (!CurrentUserContext.getAccessIds().contains(task.getOwner())) {
-          throw new InvalidOwnerException(
-              "Owner of task "
-                  + taskId
-                  + " is "
-                  + task.getOwner()
-                  + ", but current User is "
-                  + userId);
-        }
-      } else {
-        // CLAIM-forced, if task was not already claimed before.
-        if (task.getClaimed() == null || task.getState() != TaskState.CLAIMED) {
-          task = (TaskImpl) this.forceClaim(taskId);
-        }
-      }
-      Instant now = Instant.now();
-      task.setCompleted(now);
-      task.setModified(now);
-      task.setState(TaskState.COMPLETED);
-      task.setOwner(userId);
-      taskMapper.update(task);
-      LOGGER.debug("Task '{}' completed by user '{}'.", taskId, userId);
-      if (HistoryEventProducer.isHistoryEnabled()) {
-        historyEventProducer.createEvent(new CompletedEvent(task));
-      }
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from completeTask()");
-    }
-    return task;
-  }
-
   @Override
   public Task forceCompleteTask(String taskId)
       throws TaskNotFoundException, InvalidOwnerException, InvalidStateException,
@@ -276,35 +151,6 @@ public class TaskServiceImpl implements TaskService {
     return completeTask(taskId, true);
   }
 
-  @Override
-  public BulkOperationResults<String, TaskanaException> completeTasks(
-      List<String> taskIdsToBeCompleted) throws InvalidArgumentException {
-    try {
-      LOGGER.debug("entry to completeTasks(taskIds = {})", taskIdsToBeCompleted);
-      taskanaEngine.openConnection();
-
-      if (taskIdsToBeCompleted == null || taskIdsToBeCompleted.isEmpty()) {
-        throw new InvalidArgumentException("TaskIds can´t be used as NULL-Parameter.");
-      }
-
-      BulkOperationResults<String, TaskanaException> bulkLog = new BulkOperationResults<>();
-      List<String> taskIds = new ArrayList<>(taskIdsToBeCompleted);
-      removeNonExistingTasksFromTaskIdList(taskIds, bulkLog);
-
-      List<TaskSummary> taskSummaries =
-          this.createTaskQuery().idIn(taskIds.toArray(new String[0])).list();
-
-      checkIfTasksMatchCompleteCriteria(taskIds, taskSummaries, bulkLog);
-
-      updateTasksToBeCompleted(taskIds, taskSummaries);
-
-      return bulkLog;
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from to completeTasks(taskIds = {})", taskIdsToBeCompleted);
-    }
-  }
-
   @Override
   public Task createTask(Task taskToCreate)
       throws NotAuthorizedException, WorkbasketNotFoundException, ClassificationNotFoundException,
@@ -465,6 +311,20 @@ public class TaskServiceImpl implements TaskService {
     }
   }
 
+  @Override
+  public Task transfer(String taskId, String destinationWorkbasketId)
+      throws TaskNotFoundException, WorkbasketNotFoundException, NotAuthorizedException,
+          InvalidStateException {
+    return taskTransferrer.transfer(taskId, destinationWorkbasketId);
+  }
+
+  @Override
+  public Task transfer(String taskId, String workbasketKey, String domain)
+      throws TaskNotFoundException, WorkbasketNotFoundException, NotAuthorizedException,
+          InvalidStateException {
+    return taskTransferrer.transfer(taskId, workbasketKey, domain);
+  }
+
   @Override
   public Task setTaskRead(String taskId, boolean isRead)
       throws TaskNotFoundException, NotAuthorizedException {
@@ -484,35 +344,6 @@ public class TaskServiceImpl implements TaskService {
     }
   }
 
-  @Override
-  public Task transfer(String taskId, String destinationWorkbasketId)
-      throws TaskNotFoundException, WorkbasketNotFoundException, NotAuthorizedException,
-          InvalidStateException {
-    return taskTransferrer.transfer(taskId, destinationWorkbasketId);
-  }
-
-  @Override
-  public Task transfer(String taskId, String workbasketKey, String domain)
-      throws TaskNotFoundException, WorkbasketNotFoundException, NotAuthorizedException,
-          InvalidStateException {
-    return taskTransferrer.transfer(taskId, workbasketKey, domain);
-  }
-
-  @Override
-  public BulkOperationResults<String, TaskanaException> transferTasks(
-      String destinationWorkbasketId, List<String> taskIds)
-      throws NotAuthorizedException, InvalidArgumentException, WorkbasketNotFoundException {
-    return taskTransferrer.transferTasks(destinationWorkbasketId, taskIds);
-  }
-
-  @Override
-  public BulkOperationResults<String, TaskanaException> transferTasks(
-      String destinationWorkbasketKey, String destinationWorkbasketDomain, List<String> taskIds)
-      throws NotAuthorizedException, InvalidArgumentException, WorkbasketNotFoundException {
-    return taskTransferrer.transferTasks(
-        destinationWorkbasketKey, destinationWorkbasketDomain, taskIds);
-  }
-
   @Override
   public TaskQuery createTaskQuery() {
     return new TaskQueryImpl(taskanaEngine);
@@ -550,38 +381,52 @@ public class TaskServiceImpl implements TaskService {
     return new AttachmentImpl();
   }
 
+  @Override
+  public Task updateTask(Task task)
+      throws InvalidArgumentException, TaskNotFoundException, ConcurrencyException,
+          ClassificationNotFoundException, NotAuthorizedException, AttachmentPersistenceException {
+    String userId = CurrentUserContext.getUserid();
+    LOGGER.debug("entry to updateTask(task = {}, userId = {})", task, userId);
+    TaskImpl newTaskImpl = (TaskImpl) task;
+    TaskImpl oldTaskImpl = null;
+    try {
+      taskanaEngine.openConnection();
+      oldTaskImpl = (TaskImpl) getTask(newTaskImpl.getId());
+      PrioDurationHolder prioDurationFromAttachments =
+          handleAttachmentsOnTaskUpdate(oldTaskImpl, newTaskImpl);
+      standardUpdateActions(oldTaskImpl, newTaskImpl, prioDurationFromAttachments);
+
+      taskMapper.update(newTaskImpl);
+      LOGGER.debug("Method updateTask() updated task '{}' for user '{}'.", task.getId(), userId);
+
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from claim()");
+    }
+    return task;
+  }
+
+  @Override
+  public BulkOperationResults<String, TaskanaException> transferTasks(
+      String destinationWorkbasketId, List<String> taskIds)
+      throws NotAuthorizedException, InvalidArgumentException, WorkbasketNotFoundException {
+    return taskTransferrer.transferTasks(destinationWorkbasketId, taskIds);
+  }
+
+  @Override
+  public BulkOperationResults<String, TaskanaException> transferTasks(
+      String destinationWorkbasketKey, String destinationWorkbasketDomain, List<String> taskIds)
+      throws NotAuthorizedException, InvalidArgumentException, WorkbasketNotFoundException {
+    return taskTransferrer.transferTasks(
+        destinationWorkbasketKey, destinationWorkbasketDomain, taskIds);
+  }
+
   @Override
   public void deleteTask(String taskId)
       throws TaskNotFoundException, InvalidStateException, NotAuthorizedException {
     deleteTask(taskId, false);
   }
 
-  private void deleteTask(String taskId, boolean forceDelete)
-      throws TaskNotFoundException, InvalidStateException, NotAuthorizedException {
-    LOGGER.debug("entry to deleteTask(taskId = {} , forceDelete = {})", taskId, forceDelete);
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN);
-    TaskImpl task = null;
-    try {
-      taskanaEngine.openConnection();
-      task = (TaskImpl) getTask(taskId);
-
-      if (!TaskState.COMPLETED.equals(task.getState()) && !forceDelete) {
-        throw new InvalidStateException(
-            "Cannot delete Task " + taskId + " because it is not completed.");
-      }
-      if (CallbackState.CALLBACK_PROCESSING_REQUIRED.equals(task.getCallbackState())) {
-        throw new InvalidStateException(
-            "Task " + taskId + " cannot be deleted because its callback is not yet processed");
-      }
-
-      taskMapper.delete(taskId);
-      LOGGER.debug("Task {} deleted.", taskId);
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from deleteTask().");
-    }
-  }
-
   @Override
   public void forceDeleteTask(String taskId)
       throws TaskNotFoundException, InvalidStateException, NotAuthorizedException {
@@ -623,35 +468,31 @@ public class TaskServiceImpl implements TaskService {
   }
 
   @Override
-  public BulkOperationResults<String, TaskanaException> setCallbackStateForTasks(
+  public BulkOperationResults<String, TaskanaException> completeTasks(
-      List<String> externalIds, CallbackState state) {
+      List<String> taskIdsToBeCompleted) throws InvalidArgumentException {
-    if (LOGGER.isDebugEnabled()) {
-      LOGGER.debug(
-          "entry to setCallbackStateForTasks(externalIds = {})",
-          LoggerUtils.listToString(externalIds));
-    }
     try {
+      LOGGER.debug("entry to completeTasks(taskIds = {})", taskIdsToBeCompleted);
       taskanaEngine.openConnection();
 
+      if (taskIdsToBeCompleted == null || taskIdsToBeCompleted.isEmpty()) {
+        throw new InvalidArgumentException("TaskIds can´t be used as NULL-Parameter.");
+      }
+
       BulkOperationResults<String, TaskanaException> bulkLog = new BulkOperationResults<>();
+      List<String> taskIds = new ArrayList<>(taskIdsToBeCompleted);
+      removeNonExistingTasksFromTaskIdList(taskIds, bulkLog);
 
-      if (externalIds == null || externalIds.isEmpty()) {
+      List<TaskSummary> taskSummaries =
-        return bulkLog;
+          this.createTaskQuery().idIn(taskIds.toArray(new String[0])).list();
-      }
 
-      List<MinimalTaskSummary> taskSummaries = taskMapper.findExistingTasks(null, externalIds);
+      checkIfTasksMatchCompleteCriteria(taskIds, taskSummaries, bulkLog);
+
+      updateTasksToBeCompleted(taskIds, taskSummaries);
 
-      Iterator<String> taskIdIterator = externalIds.iterator();
-      while (taskIdIterator.hasNext()) {
-        removeSingleTaskForCallbackStateByExternalId(bulkLog, taskSummaries, taskIdIterator, state);
-      }
-      if (!externalIds.isEmpty()) {
-        taskMapper.setCallbackStateMultiple(externalIds, state);
-      }
       return bulkLog;
     } finally {
-      LOGGER.debug("exit from setCallbckStateForTasks()");
       taskanaEngine.returnConnection();
+      LOGGER.debug("exit from to completeTasks(taskIds = {})", taskIdsToBeCompleted);
     }
   }
 
@@ -739,28 +580,36 @@ public class TaskServiceImpl implements TaskService {
   }
 
   @Override
-  public Task updateTask(Task task)
+  public BulkOperationResults<String, TaskanaException> setCallbackStateForTasks(
-      throws InvalidArgumentException, TaskNotFoundException, ConcurrencyException,
+      List<String> externalIds, CallbackState state) {
-          ClassificationNotFoundException, NotAuthorizedException, AttachmentPersistenceException {
+    if (LOGGER.isDebugEnabled()) {
-    String userId = CurrentUserContext.getUserid();
+      LOGGER.debug(
-    LOGGER.debug("entry to updateTask(task = {}, userId = {})", task, userId);
+          "entry to setCallbackStateForTasks(externalIds = {})",
-    TaskImpl newTaskImpl = (TaskImpl) task;
+          LoggerUtils.listToString(externalIds));
-    TaskImpl oldTaskImpl = null;
+    }
     try {
       taskanaEngine.openConnection();
-      oldTaskImpl = (TaskImpl) getTask(newTaskImpl.getId());
-      PrioDurationHolder prioDurationFromAttachments =
-          handleAttachmentsOnTaskUpdate(oldTaskImpl, newTaskImpl);
-      standardUpdateActions(oldTaskImpl, newTaskImpl, prioDurationFromAttachments);
 
-      taskMapper.update(newTaskImpl);
+      BulkOperationResults<String, TaskanaException> bulkLog = new BulkOperationResults<>();
-      LOGGER.debug("Method updateTask() updated task '{}' for user '{}'.", task.getId(), userId);
 
-    } finally {
+      if (externalIds == null || externalIds.isEmpty()) {
-      taskanaEngine.returnConnection();
+        return bulkLog;
-      LOGGER.debug("exit from claim()");
+      }
+
+      List<MinimalTaskSummary> taskSummaries = taskMapper.findExistingTasks(null, externalIds);
+
+      Iterator<String> taskIdIterator = externalIds.iterator();
+      while (taskIdIterator.hasNext()) {
+        removeSingleTaskForCallbackStateByExternalId(bulkLog, taskSummaries, taskIdIterator, state);
+      }
+      if (!externalIds.isEmpty()) {
+        taskMapper.setCallbackStateMultiple(externalIds, state);
+      }
+      return bulkLog;
+    } finally {
+      LOGGER.debug("exit from setCallbckStateForTasks()");
+      taskanaEngine.returnConnection();
     }
-    return task;
   }
 
   public Set<String> findTasksIdsAffectedByClassificationChange(String classificationId) {
@@ -904,6 +753,158 @@ public class TaskServiceImpl implements TaskService {
     return result;
   }
 
+  private Task claim(String taskId, boolean forceClaim)
+      throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
+          NotAuthorizedException {
+    String userId = CurrentUserContext.getUserid();
+    LOGGER.debug(
+        "entry to claim(id = {}, userId = {}, forceClaim = {})", taskId, userId, forceClaim);
+    TaskImpl task = null;
+    try {
+      taskanaEngine.openConnection();
+      task = (TaskImpl) getTask(taskId);
+      TaskState state = task.getState();
+      if (state == TaskState.COMPLETED) {
+        throw new InvalidStateException(TASK_WITH_ID + taskId + IS_ALREADY_COMPLETED);
+      }
+      if (state == TaskState.CLAIMED && !forceClaim && !task.getOwner().equals(userId)) {
+        throw new InvalidOwnerException(
+            TASK_WITH_ID + taskId + IS_ALREADY_CLAIMED_BY + task.getOwner() + ".");
+      }
+      Instant now = Instant.now();
+      task.setOwner(userId);
+      task.setModified(now);
+      task.setClaimed(now);
+      task.setRead(true);
+      task.setState(TaskState.CLAIMED);
+      taskMapper.update(task);
+      LOGGER.debug("Task '{}' claimed by user '{}'.", taskId, userId);
+      if (HistoryEventProducer.isHistoryEnabled()) {
+        historyEventProducer.createEvent(new ClaimedEvent(task));
+      }
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from claim()");
+    }
+    return task;
+  }
+
+  private Task cancelClaim(String taskId, boolean forceUnclaim)
+      throws TaskNotFoundException, InvalidStateException, InvalidOwnerException,
+          NotAuthorizedException {
+    String userId = CurrentUserContext.getUserid();
+    LOGGER.debug(
+        "entry to cancelClaim(taskId = {}), userId = {}, forceUnclaim = {})",
+        taskId,
+        userId,
+        forceUnclaim);
+    TaskImpl task = null;
+    try {
+      taskanaEngine.openConnection();
+      task = (TaskImpl) getTask(taskId);
+      TaskState state = task.getState();
+      if (state == TaskState.COMPLETED) {
+        throw new InvalidStateException(TASK_WITH_ID + taskId + IS_ALREADY_COMPLETED);
+      }
+      if (state == TaskState.CLAIMED && !forceUnclaim && !userId.equals(task.getOwner())) {
+        throw new InvalidOwnerException(
+            TASK_WITH_ID + taskId + IS_ALREADY_CLAIMED_BY + task.getOwner() + ".");
+      }
+      Instant now = Instant.now();
+      task.setOwner(null);
+      task.setModified(now);
+      task.setClaimed(null);
+      task.setRead(true);
+      task.setState(TaskState.READY);
+      taskMapper.update(task);
+      LOGGER.debug("Task '{}' unclaimed by user '{}'.", taskId, userId);
+      if (HistoryEventProducer.isHistoryEnabled()) {
+        historyEventProducer.createEvent(new ClaimCancelledEvent(task));
+      }
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from cancelClaim()");
+    }
+    return task;
+  }
+
+  private Task completeTask(String taskId, boolean isForced)
+      throws TaskNotFoundException, InvalidOwnerException, InvalidStateException,
+          NotAuthorizedException {
+    String userId = CurrentUserContext.getUserid();
+    LOGGER.debug(
+        "entry to completeTask(id = {}, userId = {}, isForced = {})", taskId, userId, isForced);
+    TaskImpl task = null;
+    try {
+      taskanaEngine.openConnection();
+      task = (TaskImpl) this.getTask(taskId);
+
+      if (task.getState() == TaskState.COMPLETED) {
+        return task;
+      }
+
+      // check pre-conditions for non-forced invocation
+      if (!isForced) {
+        if (task.getClaimed() == null || task.getState() != TaskState.CLAIMED) {
+          throw new InvalidStateException(TASK_WITH_ID + taskId + " has to be claimed before.");
+        } else if (!CurrentUserContext.getAccessIds().contains(task.getOwner())) {
+          throw new InvalidOwnerException(
+              "Owner of task "
+                  + taskId
+                  + " is "
+                  + task.getOwner()
+                  + ", but current User is "
+                  + userId);
+        }
+      } else {
+        // CLAIM-forced, if task was not already claimed before.
+        if (task.getClaimed() == null || task.getState() != TaskState.CLAIMED) {
+          task = (TaskImpl) this.forceClaim(taskId);
+        }
+      }
+      Instant now = Instant.now();
+      task.setCompleted(now);
+      task.setModified(now);
+      task.setState(TaskState.COMPLETED);
+      task.setOwner(userId);
+      taskMapper.update(task);
+      LOGGER.debug("Task '{}' completed by user '{}'.", taskId, userId);
+      if (HistoryEventProducer.isHistoryEnabled()) {
+        historyEventProducer.createEvent(new CompletedEvent(task));
+      }
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from completeTask()");
+    }
+    return task;
+  }
+
+  private void deleteTask(String taskId, boolean forceDelete)
+      throws TaskNotFoundException, InvalidStateException, NotAuthorizedException {
+    LOGGER.debug("entry to deleteTask(taskId = {} , forceDelete = {})", taskId, forceDelete);
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN);
+    TaskImpl task = null;
+    try {
+      taskanaEngine.openConnection();
+      task = (TaskImpl) getTask(taskId);
+
+      if (!TaskState.COMPLETED.equals(task.getState()) && !forceDelete) {
+        throw new InvalidStateException(
+            "Cannot delete Task " + taskId + " because it is not completed.");
+      }
+      if (CallbackState.CALLBACK_PROCESSING_REQUIRED.equals(task.getCallbackState())) {
+        throw new InvalidStateException(
+            "Task " + taskId + " cannot be deleted because its callback is not yet processed");
+      }
+
+      taskMapper.delete(taskId);
+      LOGGER.debug("Task {} deleted.", taskId);
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from deleteTask().");
+    }
+  }
+
   private void removeSingleTaskForTaskDeletionById(
       BulkOperationResults<String, TaskanaException> bulkLog,
       List<MinimalTaskSummary> taskSummaries,

lib/taskana-core/src/main/java/pro/taskana/impl/TaskStatusReportBuilderImpl.java

@@ -26,18 +26,6 @@ public class TaskStatusReportBuilderImpl implements TaskStatusReport.Builder {
     this.taskMonitorMapper = taskMonitorMapper;
   }
 
-  @Override
-  public TaskStatusReportBuilderImpl stateIn(List<TaskState> states) {
-    this.states = states;
-    return this;
-  }
-
-  @Override
-  public TaskStatusReportBuilderImpl domainIn(List<String> domains) {
-    this.domains = domains;
-    return this;
-  }
-
   @Override
   public TaskStatusReport buildReport() throws NotAuthorizedException {
     LOGGER.debug("entry to buildReport(), this = {}", this);
@@ -54,4 +42,16 @@ public class TaskStatusReportBuilderImpl implements TaskStatusReport.Builder {
       LOGGER.debug("exit from buildReport().");
     }
   }
+
+  @Override
+  public TaskStatusReportBuilderImpl stateIn(List<TaskState> states) {
+    this.states = states;
+    return this;
+  }
+
+  @Override
+  public TaskStatusReportBuilderImpl domainIn(List<String> domains) {
+    this.domains = domains;
+    return this;
+  }
 }

lib/taskana-core/src/main/java/pro/taskana/impl/TaskSummaryImpl.java

@@ -84,6 +84,15 @@ public class TaskSummaryImpl implements TaskSummary {
     this.externalId = externalId;
   }
 
+  /*
+   * (non-Javadoc)
+   * @see pro.taskana.TaskSummary#getCreator()
+   */
+  @Override
+  public String getCreator() {
+    return creator;
+  }
+
   /*
    * (non-Javadoc)
    * @see pro.taskana.TaskSummary#getCreated()
@@ -175,19 +184,6 @@ public class TaskSummaryImpl implements TaskSummary {
     this.name = name;
   }
 
-  /*
-   * (non-Javadoc)
-   * @see pro.taskana.TaskSummary#getCreator()
-   */
-  @Override
-  public String getCreator() {
-    return creator;
-  }
-
-  public void setCreator(String creator) {
-    this.creator = creator;
-  }
-
   /*
    * (non-Javadoc)
    * @see pro.taskana.TaskSummary#getNote()
@@ -253,14 +249,12 @@ public class TaskSummaryImpl implements TaskSummary {
     this.workbasketSummary = workbasketSummary;
   }
 
-  // utility method to allow mybatis access to workbasketSummary
+  @Override
-  public WorkbasketSummaryImpl getWorkbasketSummaryImpl() {
+  public List<AttachmentSummary> getAttachmentSummaries() {
-    return (WorkbasketSummaryImpl) workbasketSummary;
+    if (attachmentSummaries == null) {
+      attachmentSummaries = new ArrayList<>();
     }
-
+    return attachmentSummaries;
-  // utility method to allow mybatis access to workbasketSummary
-  public void setWorkbasketSummaryImpl(WorkbasketSummaryImpl workbasketSummary) {
-    setWorkbasketSummary(workbasketSummary);
   }
 
   /*
@@ -357,25 +351,6 @@ public class TaskSummaryImpl implements TaskSummary {
     this.isTransferred = isTransferred;
   }
 
-  @Override
-  public List<AttachmentSummary> getAttachmentSummaries() {
-    if (attachmentSummaries == null) {
-      attachmentSummaries = new ArrayList<>();
-    }
-    return attachmentSummaries;
-  }
-
-  public void setAttachmentSummaries(List<AttachmentSummary> attachmentSummaries) {
-    this.attachmentSummaries = attachmentSummaries;
-  }
-
-  public void addAttachmentSummary(AttachmentSummary attachmentSummary) {
-    if (this.attachmentSummaries == null) {
-      this.attachmentSummaries = new ArrayList<>();
-    }
-    this.attachmentSummaries.add(attachmentSummary);
-  }
-
   /*
    * (non-Javadoc)
    * @see pro.taskana.TaskSummary#getCustomAttribute(String number)
@@ -434,6 +409,31 @@ public class TaskSummaryImpl implements TaskSummary {
     }
   }
 
+  public void setAttachmentSummaries(List<AttachmentSummary> attachmentSummaries) {
+    this.attachmentSummaries = attachmentSummaries;
+  }
+
+  public void setCreator(String creator) {
+    this.creator = creator;
+  }
+
+  // utility method to allow mybatis access to workbasketSummary
+  public WorkbasketSummaryImpl getWorkbasketSummaryImpl() {
+    return (WorkbasketSummaryImpl) workbasketSummary;
+  }
+
+  // utility method to allow mybatis access to workbasketSummary
+  public void setWorkbasketSummaryImpl(WorkbasketSummaryImpl workbasketSummary) {
+    setWorkbasketSummary(workbasketSummary);
+  }
+
+  public void addAttachmentSummary(AttachmentSummary attachmentSummary) {
+    if (this.attachmentSummaries == null) {
+      this.attachmentSummaries = new ArrayList<>();
+    }
+    this.attachmentSummaries.add(attachmentSummary);
+  }
+
   // auxiliary Method to enable Mybatis to access classificationSummary
   public ClassificationSummaryImpl getClassificationSummaryImpl() {
     return (ClassificationSummaryImpl) classificationSummary;
@@ -588,6 +588,49 @@ public class TaskSummaryImpl implements TaskSummary {
     this.custom16 = custom16;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        taskId,
+        externalId,
+        created,
+        claimed,
+        completed,
+        modified,
+        planned,
+        due,
+        name,
+        creator,
+        note,
+        priority,
+        state,
+        classificationSummary,
+        workbasketSummary,
+        businessProcessId,
+        parentBusinessProcessId,
+        owner,
+        primaryObjRef,
+        isRead,
+        isTransferred,
+        attachmentSummaries,
+        custom1,
+        custom2,
+        custom3,
+        custom4,
+        custom5,
+        custom6,
+        custom7,
+        custom8,
+        custom9,
+        custom10,
+        custom11,
+        custom12,
+        custom13,
+        custom14,
+        custom15,
+        custom16);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -637,49 +680,6 @@ public class TaskSummaryImpl implements TaskSummary {
         && Objects.equals(custom16, other.custom16);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        taskId,
-        externalId,
-        created,
-        claimed,
-        completed,
-        modified,
-        planned,
-        due,
-        name,
-        creator,
-        note,
-        priority,
-        state,
-        classificationSummary,
-        workbasketSummary,
-        businessProcessId,
-        parentBusinessProcessId,
-        owner,
-        primaryObjRef,
-        isRead,
-        isTransferred,
-        attachmentSummaries,
-        custom1,
-        custom2,
-        custom3,
-        custom4,
-        custom5,
-        custom6,
-        custom7,
-        custom8,
-        custom9,
-        custom10,
-        custom11,
-        custom12,
-        custom13,
-        custom14,
-        custom15,
-        custom16);
-  }
-
   @Override
   public String toString() {
     return "TaskSummaryImpl [taskId="

lib/taskana-core/src/main/java/pro/taskana/impl/TaskanaEngineImpl.java

@@ -169,23 +169,6 @@ public class TaskanaEngineImpl implements TaskanaEngine {
     }
   }
 
-  @Override
-  public void checkRoleMembership(TaskanaRole... roles) throws NotAuthorizedException {
-    if (!isUserInRole(roles)) {
-      if (LOGGER.isDebugEnabled()) {
-        String accessIds = LoggerUtils.listToString(CurrentUserContext.getAccessIds());
-        String rolesAsString = Arrays.toString(roles);
-        LOGGER.debug(
-            "Throwing NotAuthorizedException because accessIds {} are not member of roles {}",
-            accessIds,
-            rolesAsString);
-      }
-      throw new NotAuthorizedException(
-          "current user is not member of role(s) " + Arrays.toString(roles),
-          CurrentUserContext.getUserid());
-    }
-  }
-
   @Override
   public boolean isUserInRole(TaskanaRole... roles) {
     if (!getConfiguration().isSecurityEnabled()) {
@@ -206,6 +189,23 @@ public class TaskanaEngineImpl implements TaskanaEngine {
     return false;
   }
 
+  @Override
+  public void checkRoleMembership(TaskanaRole... roles) throws NotAuthorizedException {
+    if (!isUserInRole(roles)) {
+      if (LOGGER.isDebugEnabled()) {
+        String accessIds = LoggerUtils.listToString(CurrentUserContext.getAccessIds());
+        String rolesAsString = Arrays.toString(roles);
+        LOGGER.debug(
+            "Throwing NotAuthorizedException because accessIds {} are not member of roles {}",
+            accessIds,
+            rolesAsString);
+      }
+      throw new NotAuthorizedException(
+          "current user is not member of role(s) " + Arrays.toString(roles),
+          CurrentUserContext.getUserid());
+    }
+  }
+
   /**
    * This method creates the sqlSessionManager of myBatis. It integrates all the SQL mappers and
    * sets the databaseId attribute.
@@ -330,16 +330,6 @@ public class TaskanaEngineImpl implements TaskanaEngine {
       }
     }
 
-    @Override
-    public void initSqlSession() {
-      if (mode == ConnectionManagementMode.EXPLICIT && connection == null) {
-        throw new ConnectionNotSetException();
-      } else if (mode != ConnectionManagementMode.EXPLICIT
-          && !sessionManager.isManagedSessionStarted()) {
-        sessionManager.startManagedSession();
-      }
-    }
-
     @Override
     public void returnConnection() {
       if (mode != ConnectionManagementMode.EXPLICIT) {
@@ -370,6 +360,16 @@ public class TaskanaEngineImpl implements TaskanaEngine {
       }
     }
 
+    @Override
+    public void initSqlSession() {
+      if (mode == ConnectionManagementMode.EXPLICIT && connection == null) {
+        throw new ConnectionNotSetException();
+      } else if (mode != ConnectionManagementMode.EXPLICIT
+          && !sessionManager.isManagedSessionStarted()) {
+        sessionManager.startManagedSession();
+      }
+    }
+
     @Override
     public boolean domainExists(String domain) {
       return getConfiguration().getDomains().contains(domain);

lib/taskana-core/src/main/java/pro/taskana/impl/TimeIntervalReportBuilderImpl.java

@@ -109,31 +109,6 @@ abstract class TimeIntervalReportBuilderImpl<
     return _this();
   }
 
-  @Override
-  public List<String> listCustomAttributeValuesForCustomAttributeName(CustomField customField)
-      throws NotAuthorizedException {
-    LOGGER.debug(
-        "entry to listCustomAttributeValuesForCustomAttributeName(customField = {}), this = {}",
-        customField,
-        this);
-    this.taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.MONITOR);
-    try {
-      this.taskanaEngine.openConnection();
-      return taskMonitorMapper.getCustomAttributeValuesForReport(
-          this.workbasketIds,
-          this.states,
-          this.categories,
-          this.domains,
-          this.classificationIds,
-          this.excludedClassificationIds,
-          this.customAttributeFilter,
-          customField);
-    } finally {
-      this.taskanaEngine.returnConnection();
-      LOGGER.debug("exit from listCustomAttributeValuesForCustomAttributeName().");
-    }
-  }
-
   @Override
   public List<String> listTaskIdsForSelectedItems(List<SelectedItem> selectedItems)
       throws NotAuthorizedException, InvalidArgumentException {
@@ -177,6 +152,31 @@ abstract class TimeIntervalReportBuilderImpl<
     }
   }
 
+  @Override
+  public List<String> listCustomAttributeValuesForCustomAttributeName(CustomField customField)
+      throws NotAuthorizedException {
+    LOGGER.debug(
+        "entry to listCustomAttributeValuesForCustomAttributeName(customField = {}), this = {}",
+        customField,
+        this);
+    this.taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.MONITOR);
+    try {
+      this.taskanaEngine.openConnection();
+      return taskMonitorMapper.getCustomAttributeValuesForReport(
+          this.workbasketIds,
+          this.states,
+          this.categories,
+          this.domains,
+          this.classificationIds,
+          this.excludedClassificationIds,
+          this.customAttributeFilter,
+          customField);
+    } finally {
+      this.taskanaEngine.returnConnection();
+      LOGGER.debug("exit from listCustomAttributeValuesForCustomAttributeName().");
+    }
+  }
+
   @SuppressWarnings("checkstyle:MethodName")
   protected abstract B _this();
 

lib/taskana-core/src/main/java/pro/taskana/impl/TimestampReportBuilderImpl.java

@@ -44,6 +44,16 @@ public class TimestampReportBuilderImpl
     throw new UnsupportedOperationException();
   }
 
+  @Override
+  protected TimestampReport.Builder _this() {
+    return this;
+  }
+
+  @Override
+  protected String determineGroupedBy() {
+    throw new UnsupportedOperationException();
+  }
+
   @Override
   public TimestampReport.Builder withTimestamps(List<Timestamp> statuses) {
     this.status = new ArrayList<>(statuses);
@@ -77,16 +87,6 @@ public class TimestampReportBuilderImpl
     }
   }
 
-  @Override
-  protected TimestampReport.Builder _this() {
-    return this;
-  }
-
-  @Override
-  protected String determineGroupedBy() {
-    throw new UnsupportedOperationException();
-  }
-
   private List<TimestampQueryItem> getTasksCountForStatusGroupedByOrgLevel(Timestamp s) {
     return taskMonitorMapper.getTasksCountForStatusGroupedByOrgLevel(
         s,

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketAccessItemImpl.java

@@ -83,14 +83,6 @@ public class WorkbasketAccessItemImpl implements WorkbasketAccessItem {
     this.accessId = accessId;
   }
 
-  public void setAccessIdWithSanitizing(String accessId) {
-    if (TaskanaEngineConfiguration.shouldUseLowerCaseForAccessIds()) {
-      setAccessId(accessId != null ? accessId.toLowerCase() : null);
-    } else {
-      setAccessId(accessId);
-    }
-  }
-
   /*
    * (non-Javadoc)
    * @see pro.taskana.impl.WorkbasketAccessItem#getAccessName()
@@ -415,6 +407,41 @@ public class WorkbasketAccessItemImpl implements WorkbasketAccessItem {
     this.permCustom12 = permCustom12;
   }
 
+  public void setAccessIdWithSanitizing(String accessId) {
+    if (TaskanaEngineConfiguration.shouldUseLowerCaseForAccessIds()) {
+      setAccessId(accessId != null ? accessId.toLowerCase() : null);
+    } else {
+      setAccessId(accessId);
+    }
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        id,
+        workbasketId,
+        workbasketKey,
+        accessId,
+        accessName,
+        permRead,
+        permOpen,
+        permAppend,
+        permTransfer,
+        permDistribute,
+        permCustom1,
+        permCustom2,
+        permCustom3,
+        permCustom4,
+        permCustom5,
+        permCustom6,
+        permCustom7,
+        permCustom8,
+        permCustom9,
+        permCustom10,
+        permCustom11,
+        permCustom12);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -448,33 +475,6 @@ public class WorkbasketAccessItemImpl implements WorkbasketAccessItem {
         && Objects.equals(accessName, other.accessName);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id,
-        workbasketId,
-        workbasketKey,
-        accessId,
-        accessName,
-        permRead,
-        permOpen,
-        permAppend,
-        permTransfer,
-        permDistribute,
-        permCustom1,
-        permCustom2,
-        permCustom3,
-        permCustom4,
-        permCustom5,
-        permCustom6,
-        permCustom7,
-        permCustom8,
-        permCustom9,
-        permCustom10,
-        permCustom11,
-        permCustom12);
-  }
-
   @Override
   public String toString() {
     return "WorkbasketAccessItem [id="

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketAccessItemQueryImpl.java

@@ -79,11 +79,6 @@ public class WorkbasketAccessItemQueryImpl implements WorkbasketAccessItemQuery
     return this;
   }
 
-  @Override
-  public WorkbasketAccessItemQuery orderById(SortDirection sortDirection) {
-    return addOrderCriteria("ID", sortDirection);
-  }
-
   @Override
   public WorkbasketAccessItemQuery orderByWorkbasketId(SortDirection sortDirection) {
     return addOrderCriteria("WORKBASKET_ID", sortDirection);
@@ -99,6 +94,11 @@ public class WorkbasketAccessItemQueryImpl implements WorkbasketAccessItemQuery
     return addOrderCriteria("ACCESS_ID", sortDirection);
   }
 
+  @Override
+  public WorkbasketAccessItemQuery orderById(SortDirection sortDirection) {
+    return addOrderCriteria("ID", sortDirection);
+  }
+
   @Override
   public List<WorkbasketAccessItem> list() {
     LOGGER.debug("entry to list(), this = {}", this);

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketImpl.java

@@ -40,6 +40,11 @@ public class WorkbasketImpl implements Workbasket {
     this.id = id;
   }
 
+  @Override
+  public Instant getCreated() {
+    return created;
+  }
+
   @Override
   public String getKey() {
     return key;
@@ -50,12 +55,22 @@ public class WorkbasketImpl implements Workbasket {
   }
 
   @Override
-  public Instant getCreated() {
+  public String getDomain() {
-    return created;
+    return domain;
   }
 
-  public void setCreated(Instant created) {
+  public void setDomain(String domain) {
-    this.created = created;
+    this.domain = domain;
+  }
+
+  @Override
+  public WorkbasketType getType() {
+    return type;
+  }
+
+  @Override
+  public void setType(WorkbasketType type) {
+    this.type = type;
   }
 
   @Override
@@ -97,25 +112,6 @@ public class WorkbasketImpl implements Workbasket {
     this.owner = owner;
   }
 
-  @Override
-  public String getDomain() {
-    return domain;
-  }
-
-  public void setDomain(String domain) {
-    this.domain = domain;
-  }
-
-  @Override
-  public WorkbasketType getType() {
-    return type;
-  }
-
-  @Override
-  public void setType(WorkbasketType type) {
-    this.type = type;
-  }
-
   @Override
   public String getCustom1() {
     return custom1;
@@ -228,6 +224,33 @@ public class WorkbasketImpl implements Workbasket {
     return result;
   }
 
+  public void setCreated(Instant created) {
+    this.created = created;
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        id,
+        key,
+        created,
+        modified,
+        name,
+        description,
+        owner,
+        domain,
+        type,
+        custom1,
+        custom2,
+        custom3,
+        custom4,
+        orgLevel1,
+        orgLevel2,
+        orgLevel3,
+        orgLevel4,
+        markedForDeletion);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -257,29 +280,6 @@ public class WorkbasketImpl implements Workbasket {
         && Objects.equals(orgLevel4, other.orgLevel4);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id,
-        key,
-        created,
-        modified,
-        name,
-        description,
-        owner,
-        domain,
-        type,
-        custom1,
-        custom2,
-        custom3,
-        custom4,
-        orgLevel1,
-        orgLevel2,
-        orgLevel3,
-        orgLevel4,
-        markedForDeletion);
-  }
-
   @Override
   public String toString() {
     return "WorkbasketImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketQueryImpl.java

@@ -128,12 +128,6 @@ public class WorkbasketQueryImpl implements WorkbasketQuery {
     return this;
   }
 
-  @Override
-  public WorkbasketQuery domainLike(String... domain) {
-    this.domainLike = domain;
-    return this;
-  }
-
   @Override
   public WorkbasketQuery typeIn(WorkbasketType... type) {
     this.type = type;
@@ -180,6 +174,109 @@ public class WorkbasketQueryImpl implements WorkbasketQuery {
     return this;
   }
 
+  @Override
+  public WorkbasketQuery accessIdsHavePermission(
+      WorkbasketPermission permission, String... accessIds)
+      throws InvalidArgumentException, NotAuthorizedException {
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN);
+    // Checking pre-conditions
+    if (permission == null) {
+      throw new InvalidArgumentException("Permission can´t be null.");
+    }
+    if (accessIds == null || accessIds.length == 0) {
+      throw new InvalidArgumentException("accessIds can´t be NULL or empty.");
+    }
+
+    // set up permissions and ids
+    this.permission = permission;
+    this.accessId = accessIds;
+    lowercaseAccessIds(this.accessId);
+
+    return this;
+  }
+
+  @Override
+  public WorkbasketQuery callerHasPermission(WorkbasketPermission permission) {
+    this.permission = permission;
+    return this;
+  }
+
+  @Override
+  public WorkbasketQuery orderByName(SortDirection sortDirection) {
+    return addOrderCriteria("NAME", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByKey(SortDirection sortDirection) {
+    return addOrderCriteria("KEY", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByDescription(SortDirection sortDirection) {
+    return addOrderCriteria("DESCRIPTION", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByOwner(SortDirection sortDirection) {
+    return addOrderCriteria("OWNER", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByType(SortDirection sortDirection) {
+    return addOrderCriteria("TYPE", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByDomain(SortDirection sortDirection) {
+    return addOrderCriteria("DOMAIN", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery domainLike(String... domain) {
+    this.domainLike = domain;
+    return this;
+  }
+
+  @Override
+  public WorkbasketQuery orderByCustom1(SortDirection sortDirection) {
+    return addOrderCriteria("CUSTOM_1", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByCustom2(SortDirection sortDirection) {
+    return addOrderCriteria("CUSTOM_2", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByCustom3(SortDirection sortDirection) {
+    return addOrderCriteria("CUSTOM_3", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByCustom4(SortDirection sortDirection) {
+    return addOrderCriteria("CUSTOM_4", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByOrgLevel1(SortDirection sortDirection) {
+    return addOrderCriteria("ORG_LEVEL_1", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByOrgLevel2(SortDirection sortDirection) {
+    return addOrderCriteria("ORG_LEVEL_2", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByOrgLevel3(SortDirection sortDirection) {
+    return addOrderCriteria("ORG_LEVEL_3", sortDirection);
+  }
+
+  @Override
+  public WorkbasketQuery orderByOrgLevel4(SortDirection sortDirection) {
+    return addOrderCriteria("ORG_LEVEL_4", sortDirection);
+  }
+
   @Override
   public WorkbasketQuery custom1In(String... custom1) {
     this.custom1In = custom1;
@@ -282,103 +379,6 @@ public class WorkbasketQueryImpl implements WorkbasketQuery {
     return this;
   }
 
-  @Override
-  public WorkbasketQuery orderByName(SortDirection sortDirection) {
-    return addOrderCriteria("NAME", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByKey(SortDirection sortDirection) {
-    return addOrderCriteria("KEY", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByDomain(SortDirection sortDirection) {
-    return addOrderCriteria("DOMAIN", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByDescription(SortDirection sortDirection) {
-    return addOrderCriteria("DESCRIPTION", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByOwner(SortDirection sortDirection) {
-    return addOrderCriteria("OWNER", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByType(SortDirection sortDirection) {
-    return addOrderCriteria("TYPE", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByCustom1(SortDirection sortDirection) {
-    return addOrderCriteria("CUSTOM_1", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByCustom2(SortDirection sortDirection) {
-    return addOrderCriteria("CUSTOM_2", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByCustom3(SortDirection sortDirection) {
-    return addOrderCriteria("CUSTOM_3", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByCustom4(SortDirection sortDirection) {
-    return addOrderCriteria("CUSTOM_4", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByOrgLevel1(SortDirection sortDirection) {
-    return addOrderCriteria("ORG_LEVEL_1", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByOrgLevel2(SortDirection sortDirection) {
-    return addOrderCriteria("ORG_LEVEL_2", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByOrgLevel3(SortDirection sortDirection) {
-    return addOrderCriteria("ORG_LEVEL_3", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery orderByOrgLevel4(SortDirection sortDirection) {
-    return addOrderCriteria("ORG_LEVEL_4", sortDirection);
-  }
-
-  @Override
-  public WorkbasketQuery accessIdsHavePermission(
-      WorkbasketPermission permission, String... accessIds)
-      throws InvalidArgumentException, NotAuthorizedException {
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN);
-    // Checking pre-conditions
-    if (permission == null) {
-      throw new InvalidArgumentException("Permission can´t be null.");
-    }
-    if (accessIds == null || accessIds.length == 0) {
-      throw new InvalidArgumentException("accessIds can´t be NULL or empty.");
-    }
-
-    // set up permissions and ids
-    this.permission = permission;
-    this.accessId = accessIds;
-    lowercaseAccessIds(this.accessId);
-
-    return this;
-  }
-
-  @Override
-  public WorkbasketQuery callerHasPermission(WorkbasketPermission permission) {
-    this.permission = permission;
-    return this;
-  }
-
   @Override
   public List<WorkbasketSummary> list() {
     LOGGER.debug("entry to list(), this = {}", this);

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketServiceImpl.java

@@ -204,53 +204,32 @@ public class WorkbasketServiceImpl implements WorkbasketService {
   }
 
   @Override
-  public void setWorkbasketAccessItems(
+  public WorkbasketAccessItem updateWorkbasketAccessItem(WorkbasketAccessItem workbasketAccessItem)
-      String workbasketId, List<WorkbasketAccessItem> wbAccessItems)
       throws InvalidArgumentException, NotAuthorizedException {
     LOGGER.debug(
-        "entry to setWorkbasketAccessItems(workbasketAccessItems = {})", wbAccessItems.toString());
+        "entry to updateWorkbasketAccessItem(workbasketAccessItem = {}", workbasketAccessItem);
     taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
-    List<WorkbasketAccessItemImpl> newItems = new ArrayList<>();
+    WorkbasketAccessItemImpl accessItem = (WorkbasketAccessItemImpl) workbasketAccessItem;
     try {
       taskanaEngine.openConnection();
-      // Check pre-conditions and set ID
+      WorkbasketAccessItem originalItem = workbasketAccessMapper.findById(accessItem.getId());
-      if (!wbAccessItems.isEmpty()) {
+
-        for (WorkbasketAccessItem workbasketAccessItem : wbAccessItems) {
+      if ((originalItem.getAccessId() != null
-          WorkbasketAccessItemImpl wbAccessItemImpl =
+              && !originalItem.getAccessId().equals(accessItem.getAccessId()))
-              (WorkbasketAccessItemImpl) workbasketAccessItem;
+          || (originalItem.getWorkbasketId() != null
-          if (wbAccessItemImpl.getWorkbasketId() == null) {
+              && !originalItem.getWorkbasketId().equals(accessItem.getWorkbasketId()))) {
         throw new InvalidArgumentException(
-                String.format(
+            "AccessId and WorkbasketId must not be changed in updateWorkbasketAccessItem calls");
-                    "Checking the preconditions of the current WorkbasketAccessItem failed "
-                        + "- WBID is NULL. WorkbasketAccessItem=%s",
-                    workbasketAccessItem));
-          } else if (!wbAccessItemImpl.getWorkbasketId().equals(workbasketId)) {
-            throw new InvalidArgumentException(
-                String.format(
-                    "Checking the preconditions of the current WorkbasketAccessItem failed "
-                        + "- the WBID does not match. Target-WBID=''%s'' WorkbasketAccessItem=%s",
-                    workbasketId, workbasketAccessItem));
-          }
-          if (wbAccessItemImpl.getId() == null || wbAccessItemImpl.getId().isEmpty()) {
-            wbAccessItemImpl.setId(
-                IdGenerator.generateWithPrefix(ID_PREFIX_WORKBASKET_AUTHORIZATION));
-          }
-          newItems.add(wbAccessItemImpl);
-        }
       }
 
-      // delete all current ones
+      workbasketAccessMapper.update(accessItem);
-      workbasketAccessMapper.deleteAllAccessItemsForWorkbasketId(workbasketId);
+      LOGGER.debug(
-
+          "Method updateWorkbasketAccessItem() updated workbasketAccessItem {}", accessItem);
-      // add all
+      return accessItem;
-      if (!newItems.isEmpty()) {
-        newItems.forEach(item -> workbasketAccessMapper.insert(item));
-      }
     } finally {
       taskanaEngine.returnConnection();
       LOGGER.debug(
-          "exit from setWorkbasketAccessItems(workbasketAccessItems = {})",
+          "exit from updateWorkbasketAccessItem(workbasketAccessItem). Returning {}", accessItem);
-          wbAccessItems.toString());
     }
   }
 
@@ -270,20 +249,6 @@ public class WorkbasketServiceImpl implements WorkbasketService {
     }
   }
 
-  @Override
-  public void deleteWorkbasketAccessItemsForAccessId(String accessId)
-      throws NotAuthorizedException {
-    LOGGER.debug("entry to deleteWorkbasketAccessItemsForAccessId(accessId = {})", accessId);
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
-    try {
-      taskanaEngine.openConnection();
-      workbasketAccessMapper.deleteAccessItemsForAccessId(accessId);
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug("exit from deleteWorkbasketAccessItemsForAccessId(accessId={}).", accessId);
-    }
-  }
-
   @Override
   public void checkAuthorization(String workbasketId, WorkbasketPermission... requestedPermissions)
       throws NotAuthorizedException, WorkbasketNotFoundException {
@@ -389,36 +354,6 @@ public class WorkbasketServiceImpl implements WorkbasketService {
     }
   }
 
-  @Override
-  public WorkbasketAccessItem updateWorkbasketAccessItem(WorkbasketAccessItem workbasketAccessItem)
-      throws InvalidArgumentException, NotAuthorizedException {
-    LOGGER.debug(
-        "entry to updateWorkbasketAccessItem(workbasketAccessItem = {}", workbasketAccessItem);
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
-    WorkbasketAccessItemImpl accessItem = (WorkbasketAccessItemImpl) workbasketAccessItem;
-    try {
-      taskanaEngine.openConnection();
-      WorkbasketAccessItem originalItem = workbasketAccessMapper.findById(accessItem.getId());
-
-      if ((originalItem.getAccessId() != null
-              && !originalItem.getAccessId().equals(accessItem.getAccessId()))
-          || (originalItem.getWorkbasketId() != null
-              && !originalItem.getWorkbasketId().equals(accessItem.getWorkbasketId()))) {
-        throw new InvalidArgumentException(
-            "AccessId and WorkbasketId must not be changed in updateWorkbasketAccessItem calls");
-      }
-
-      workbasketAccessMapper.update(accessItem);
-      LOGGER.debug(
-          "Method updateWorkbasketAccessItem() updated workbasketAccessItem {}", accessItem);
-      return accessItem;
-    } finally {
-      taskanaEngine.returnConnection();
-      LOGGER.debug(
-          "exit from updateWorkbasketAccessItem(workbasketAccessItem). Returning {}", accessItem);
-    }
-  }
-
   @Override
   public List<WorkbasketAccessItem> getWorkbasketAccessItems(String workbasketId)
       throws NotAuthorizedException {
@@ -443,11 +378,54 @@ public class WorkbasketServiceImpl implements WorkbasketService {
   }
 
   @Override
-  public List<WorkbasketPermission> getPermissionsForWorkbasket(String workbasketId) {
+  public void setWorkbasketAccessItems(
-    WorkbasketAccessItem wbAcc =
+      String workbasketId, List<WorkbasketAccessItem> wbAccessItems)
-        workbasketAccessMapper.findByWorkbasketAndAccessId(
+      throws InvalidArgumentException, NotAuthorizedException {
-            workbasketId, CurrentUserContext.getAccessIds());
+    LOGGER.debug(
-    return this.getPermissionsFromWorkbasketAccessItem(wbAcc);
+        "entry to setWorkbasketAccessItems(workbasketAccessItems = {})", wbAccessItems.toString());
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
+    List<WorkbasketAccessItemImpl> newItems = new ArrayList<>();
+    try {
+      taskanaEngine.openConnection();
+      // Check pre-conditions and set ID
+      if (!wbAccessItems.isEmpty()) {
+        for (WorkbasketAccessItem workbasketAccessItem : wbAccessItems) {
+          WorkbasketAccessItemImpl wbAccessItemImpl =
+              (WorkbasketAccessItemImpl) workbasketAccessItem;
+          if (wbAccessItemImpl.getWorkbasketId() == null) {
+            throw new InvalidArgumentException(
+                String.format(
+                    "Checking the preconditions of the current WorkbasketAccessItem failed "
+                        + "- WBID is NULL. WorkbasketAccessItem=%s",
+                    workbasketAccessItem));
+          } else if (!wbAccessItemImpl.getWorkbasketId().equals(workbasketId)) {
+            throw new InvalidArgumentException(
+                String.format(
+                    "Checking the preconditions of the current WorkbasketAccessItem failed "
+                        + "- the WBID does not match. Target-WBID=''%s'' WorkbasketAccessItem=%s",
+                    workbasketId, workbasketAccessItem));
+          }
+          if (wbAccessItemImpl.getId() == null || wbAccessItemImpl.getId().isEmpty()) {
+            wbAccessItemImpl.setId(
+                IdGenerator.generateWithPrefix(ID_PREFIX_WORKBASKET_AUTHORIZATION));
+          }
+          newItems.add(wbAccessItemImpl);
+        }
+      }
+
+      // delete all current ones
+      workbasketAccessMapper.deleteAllAccessItemsForWorkbasketId(workbasketId);
+
+      // add all
+      if (!newItems.isEmpty()) {
+        newItems.forEach(item -> workbasketAccessMapper.insert(item));
+      }
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug(
+          "exit from setWorkbasketAccessItems(workbasketAccessItems = {})",
+          wbAccessItems.toString());
+    }
   }
 
   @Override
@@ -455,6 +433,12 @@ public class WorkbasketServiceImpl implements WorkbasketService {
     return new WorkbasketQueryImpl(taskanaEngine);
   }
 
+  @Override
+  public WorkbasketAccessItemQuery createWorkbasketAccessItemQuery() throws NotAuthorizedException {
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN);
+    return new WorkbasketAccessItemQueryImpl(this.taskanaEngine);
+  }
+
   @Override
   public Workbasket newWorkbasket(String key, String domain) {
     WorkbasketImpl wb = new WorkbasketImpl();
@@ -463,6 +447,14 @@ public class WorkbasketServiceImpl implements WorkbasketService {
     return wb;
   }
 
+  @Override
+  public List<WorkbasketPermission> getPermissionsForWorkbasket(String workbasketId) {
+    WorkbasketAccessItem wbAcc =
+        workbasketAccessMapper.findByWorkbasketAndAccessId(
+            workbasketId, CurrentUserContext.getAccessIds());
+    return this.getPermissionsFromWorkbasketAccessItem(wbAcc);
+  }
+
   @Override
   public List<WorkbasketSummary> getDistributionTargets(String workbasketId)
       throws NotAuthorizedException, WorkbasketNotFoundException {
@@ -520,63 +512,6 @@ public class WorkbasketServiceImpl implements WorkbasketService {
     }
   }
 
-  @Override
-  public List<WorkbasketSummary> getDistributionSources(String workbasketId)
-      throws NotAuthorizedException, WorkbasketNotFoundException {
-    LOGGER.debug("entry to getDistributionSources(workbasketId = {})", workbasketId);
-    List<WorkbasketSummary> result = new ArrayList<>();
-    try {
-      taskanaEngine.openConnection();
-      // check that source workbasket exists
-      getWorkbasket(workbasketId);
-      if (!taskanaEngine.getEngine().isUserInRole(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN)) {
-        checkAuthorization(workbasketId, WorkbasketPermission.READ);
-      }
-      List<WorkbasketSummaryImpl> distributionSources =
-          workbasketMapper.findDistributionSources(workbasketId);
-      result.addAll(distributionSources);
-      return result;
-    } finally {
-      taskanaEngine.returnConnection();
-      if (LOGGER.isDebugEnabled()) {
-        int numberOfResultObjects = result.size();
-        LOGGER.debug(
-            "exit from getDistributionSources(workbasketId). Returning {} resulting Objects: {} ",
-            numberOfResultObjects,
-            LoggerUtils.listToString(result));
-      }
-    }
-  }
-
-  @Override
-  public List<WorkbasketSummary> getDistributionSources(String workbasketKey, String domain)
-      throws NotAuthorizedException, WorkbasketNotFoundException {
-    LOGGER.debug(
-        "entry to getDistributionSources(workbasketKey = {}, domain = {})", workbasketKey, domain);
-    List<WorkbasketSummary> result = new ArrayList<>();
-    try {
-      taskanaEngine.openConnection();
-      // check that source workbasket exists
-      Workbasket workbasket = getWorkbasket(workbasketKey, domain);
-      if (!taskanaEngine.getEngine().isUserInRole(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN)) {
-        checkAuthorization(workbasket.getId(), WorkbasketPermission.READ);
-      }
-      List<WorkbasketSummaryImpl> distributionSources =
-          workbasketMapper.findDistributionSources(workbasket.getId());
-      result.addAll(distributionSources);
-      return result;
-    } finally {
-      taskanaEngine.returnConnection();
-      if (LOGGER.isDebugEnabled()) {
-        int numberOfResultObjects = result.size();
-        LOGGER.debug(
-            "exit from getDistributionSources(workbasketId). Returning {} resulting Objects: {} ",
-            numberOfResultObjects,
-            LoggerUtils.listToString(result));
-      }
-    }
-  }
-
   @Override
   public void setDistributionTargets(String sourceWorkbasketId, List<String> targetWorkbasketIds)
       throws WorkbasketNotFoundException, NotAuthorizedException {
@@ -811,9 +746,74 @@ public class WorkbasketServiceImpl implements WorkbasketService {
   }
 
   @Override
-  public WorkbasketAccessItemQuery createWorkbasketAccessItemQuery() throws NotAuthorizedException {
+  public List<WorkbasketSummary> getDistributionSources(String workbasketId)
-    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN);
+      throws NotAuthorizedException, WorkbasketNotFoundException {
-    return new WorkbasketAccessItemQueryImpl(this.taskanaEngine);
+    LOGGER.debug("entry to getDistributionSources(workbasketId = {})", workbasketId);
+    List<WorkbasketSummary> result = new ArrayList<>();
+    try {
+      taskanaEngine.openConnection();
+      // check that source workbasket exists
+      getWorkbasket(workbasketId);
+      if (!taskanaEngine.getEngine().isUserInRole(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN)) {
+        checkAuthorization(workbasketId, WorkbasketPermission.READ);
+      }
+      List<WorkbasketSummaryImpl> distributionSources =
+          workbasketMapper.findDistributionSources(workbasketId);
+      result.addAll(distributionSources);
+      return result;
+    } finally {
+      taskanaEngine.returnConnection();
+      if (LOGGER.isDebugEnabled()) {
+        int numberOfResultObjects = result.size();
+        LOGGER.debug(
+            "exit from getDistributionSources(workbasketId). Returning {} resulting Objects: {} ",
+            numberOfResultObjects,
+            LoggerUtils.listToString(result));
+      }
+    }
+  }
+
+  @Override
+  public List<WorkbasketSummary> getDistributionSources(String workbasketKey, String domain)
+      throws NotAuthorizedException, WorkbasketNotFoundException {
+    LOGGER.debug(
+        "entry to getDistributionSources(workbasketKey = {}, domain = {})", workbasketKey, domain);
+    List<WorkbasketSummary> result = new ArrayList<>();
+    try {
+      taskanaEngine.openConnection();
+      // check that source workbasket exists
+      Workbasket workbasket = getWorkbasket(workbasketKey, domain);
+      if (!taskanaEngine.getEngine().isUserInRole(TaskanaRole.ADMIN, TaskanaRole.BUSINESS_ADMIN)) {
+        checkAuthorization(workbasket.getId(), WorkbasketPermission.READ);
+      }
+      List<WorkbasketSummaryImpl> distributionSources =
+          workbasketMapper.findDistributionSources(workbasket.getId());
+      result.addAll(distributionSources);
+      return result;
+    } finally {
+      taskanaEngine.returnConnection();
+      if (LOGGER.isDebugEnabled()) {
+        int numberOfResultObjects = result.size();
+        LOGGER.debug(
+            "exit from getDistributionSources(workbasketId). Returning {} resulting Objects: {} ",
+            numberOfResultObjects,
+            LoggerUtils.listToString(result));
+      }
+    }
+  }
+
+  @Override
+  public void deleteWorkbasketAccessItemsForAccessId(String accessId)
+      throws NotAuthorizedException {
+    LOGGER.debug("entry to deleteWorkbasketAccessItemsForAccessId(accessId = {})", accessId);
+    taskanaEngine.getEngine().checkRoleMembership(TaskanaRole.BUSINESS_ADMIN, TaskanaRole.ADMIN);
+    try {
+      taskanaEngine.openConnection();
+      workbasketAccessMapper.deleteAccessItemsForAccessId(accessId);
+    } finally {
+      taskanaEngine.returnConnection();
+      LOGGER.debug("exit from deleteWorkbasketAccessItemsForAccessId(accessId={}).", accessId);
+    }
   }
 
   private boolean skipAuthorizationCheck() {

lib/taskana-core/src/main/java/pro/taskana/impl/WorkbasketSummaryImpl.java

@@ -231,6 +231,27 @@ public class WorkbasketSummaryImpl implements WorkbasketSummary {
     this.markedForDeletion = markedForDeletion;
   }
 
+  @Override
+  public int hashCode() {
+    return Objects.hash(
+        id,
+        key,
+        name,
+        description,
+        owner,
+        domain,
+        type,
+        custom1,
+        custom2,
+        custom3,
+        custom4,
+        orgLevel1,
+        orgLevel2,
+        orgLevel3,
+        orgLevel4,
+        markedForDeletion);
+  }
+
   @Override
   public boolean equals(Object obj) {
     if (this == obj) {
@@ -258,27 +279,6 @@ public class WorkbasketSummaryImpl implements WorkbasketSummary {
         && Objects.equals(orgLevel4, other.orgLevel4);
   }
 
-  @Override
-  public int hashCode() {
-    return Objects.hash(
-        id,
-        key,
-        name,
-        description,
-        owner,
-        domain,
-        type,
-        custom1,
-        custom2,
-        custom3,
-        custom4,
-        orgLevel1,
-        orgLevel2,
-        orgLevel3,
-        orgLevel4,
-        markedForDeletion);
-  }
-
   @Override
   public String toString() {
     return "WorkbasketSummaryImpl [id="

lib/taskana-core/src/main/java/pro/taskana/impl/report/item/MonitorQueryItem.java

@@ -19,6 +19,11 @@ public class MonitorQueryItem implements AgeQueryItem {
     this.key = key;
   }
 
+  @Override
+  public int getValue() {
+    return numberOfTasks;
+  }
+
   @Override
   public int getAgeInDays() {
     return ageInDays;
@@ -29,11 +34,6 @@ public class MonitorQueryItem implements AgeQueryItem {
     this.ageInDays = ageInDays;
   }
 
-  @Override
-  public int getValue() {
-    return numberOfTasks;
-  }
-
   public void setNumberOfTasks(int numberOfTasks) {
     this.numberOfTasks = numberOfTasks;
   }

lib/taskana-core/src/main/java/pro/taskana/impl/report/row/FoldableRow.java

@@ -37,14 +37,6 @@ public abstract class FoldableRow<I extends QueryItem> extends SingleRow<I> {
     return foldableRows.keySet();
   }
 
-  @Override
-  public void updateTotalValue(I item) {
-    super.updateTotalValue(item);
-    foldableRows
-        .computeIfAbsent(calcFoldableRowKey.apply(item), (s) -> buildRow(columnSize))
-        .updateTotalValue(item);
-  }
-
   @Override
   public void addItem(I item, int index) throws IndexOutOfBoundsException {
     super.addItem(item, index);
@@ -53,6 +45,14 @@ public abstract class FoldableRow<I extends QueryItem> extends SingleRow<I> {
         .addItem(item, index);
   }
 
+  @Override
+  public void updateTotalValue(I item) {
+    super.updateTotalValue(item);
+    foldableRows
+        .computeIfAbsent(calcFoldableRowKey.apply(item), (s) -> buildRow(columnSize))
+        .updateTotalValue(item);
+  }
+
   public Row<I> getFoldableRow(String key) {
     return foldableRows.get(key);
   }

lib/taskana-core/src/main/java/pro/taskana/jobs/JobRunner.java

@@ -70,7 +70,7 @@ public class JobRunner {
     try {
       hostAddress = InetAddress.getLocalHost().getHostAddress();
     } catch (UnknownHostException e) {
-      //ignore
+      // ignore
     }
     job.setLockedBy(hostAddress + " - " + Thread.currentThread().getName());
     String owner = hostAddress + " - " + Thread.currentThread().getName();

lib/taskana-core/src/main/java/pro/taskana/report/CategoryReport.java

@@ -22,9 +22,7 @@ public class CategoryReport extends Report<MonitorQueryItem, TimeIntervalColumnH
     super(timeIntervalColumnHeaders, new String[] {"CLASSIFICATION CATEGORIES"});
   }
 
-  /**
+  /** Builder for {@link CategoryReport}. */
-   * Builder for {@link CategoryReport}.
-   */
   public interface Builder
       extends TimeIntervalReportBuilder<Builder, MonitorQueryItem, TimeIntervalColumnHeader> {
 

lib/taskana-core/src/main/java/pro/taskana/security/CurrentUserContext.java

@@ -95,7 +95,8 @@ public final class CurrentUserContext {
         LOGGER.debug("Public credentials of caller: {}", publicCredentials);
         for (Object credential : publicCredentials) {
           Object o =
-              credential.getClass()
+              credential
+                  .getClass()
                   .getMethod(GET_UNIQUE_SECURITY_NAME_METHOD, (Class<?>[]) null)
                   .invoke(credential, (Object[]) null);
           LOGGER.debug("Returning the unique security name of first public credential: {}", o);

lib/taskana-core/src/test/java/pro/taskana/impl/TestClassificationQuery.java

@@ -67,6 +67,11 @@ public class TestClassificationQuery implements ClassificationQuery {
     return this;
   }
 
+  @Override
+  public ClassificationQuery modifiedWithin(TimeInterval... modifiedIn) {
+    return this;
+  }
+
   @Override
   public ClassificationQuery nameIn(String... name) {
     return this;
@@ -117,28 +122,6 @@ public class TestClassificationQuery implements ClassificationQuery {
     return this;
   }
 
-  @Override
-  public List<ClassificationSummary> list() {
-    List<ClassificationSummary> returnedClassifications = new ArrayList<>();
-    returnedClassifications.addAll(classifications);
-    return returnedClassifications;
-  }
-
-  @Override
-  public List<ClassificationSummary> list(int offset, int limit) {
-    return new ArrayList<>();
-  }
-
-  @Override
-  public ClassificationSummary single() {
-    return null;
-  }
-
-  @Override
-  public long count() {
-    return 0;
-  }
-
   @Override
   public ClassificationQuery orderByKey(SortDirection sortDirection) {
     return this;
@@ -190,8 +173,15 @@ public class TestClassificationQuery implements ClassificationQuery {
   }
 
   @Override
-  public ClassificationQuery modifiedWithin(TimeInterval... modifiedIn) {
+  public List<ClassificationSummary> list() {
-    return this;
+    List<ClassificationSummary> returnedClassifications = new ArrayList<>();
+    returnedClassifications.addAll(classifications);
+    return returnedClassifications;
+  }
+
+  @Override
+  public List<ClassificationSummary> list(int offset, int limit) {
+    return new ArrayList<>();
   }
 
   @Override
@@ -199,4 +189,14 @@ public class TestClassificationQuery implements ClassificationQuery {
       ClassificationQueryColumnName dbColumnName, SortDirection sortDirection) {
     return new ArrayList<>();
   }
+
+  @Override
+  public ClassificationSummary single() {
+    return null;
+  }
+
+  @Override
+  public long count() {
+    return 0;
+  }
 }

lib/taskana-core/src/test/java/pro/taskana/impl/integration/ClassificationServiceImplIntExplicitTest.java

@@ -46,8 +46,9 @@ import pro.taskana.sampledata.SampleDataGenerator;
  */
 public class ClassificationServiceImplIntExplicitTest {
 
-  static int counter = 0;
   private static final String ID_PREFIX_CLASSIFICATION = "CLI";
+  @SuppressWarnings("checkstyle:DeclarationOrder")
+  static int counter = 0;
   private DataSource dataSource;
   private ClassificationService classificationService;
   private TaskanaEngineConfiguration taskanaEngineConfiguration;

lib/taskana-core/src/test/java/pro/taskana/impl/integration/TaskServiceImplIntAutocommitTest.java

@@ -224,8 +224,8 @@ class TaskServiceImplIntAutocommitTest {
     final Workbasket destinationWB = workbasketService.createWorkbasket(wb);
 
     // Classification required for Task
-    ClassificationImpl classification = (ClassificationImpl) classificationService
+    ClassificationImpl classification =
-        .newClassification("KEY", "DOMAIN_A", "TASK");
+        (ClassificationImpl) classificationService.newClassification("KEY", "DOMAIN_A", "TASK");
     classification.setCategory("EXTERNAL");
     classification.setName("Transfert-Task Classification");
     classificationService.createClassification(classification);

lib/taskana-core/src/test/java/pro/taskana/impl/integration/TaskServiceImplIntExplicitTest.java

@@ -328,8 +328,8 @@ class TaskServiceImplIntExplicitTest {
     createWorkbasketWithSecurity(destinationWB, destinationWB.getOwner(), false, true, true, true);
 
     // Classification required for Task
-    ClassificationImpl classification = (ClassificationImpl) classificationService
+    ClassificationImpl classification =
-        .newClassification("KEY", "DOMAIN_A", "TASK");
+        (ClassificationImpl) classificationService.newClassification("KEY", "DOMAIN_A", "TASK");
     classification.setCategory("EXTERNAL");
     classification.setName("Transfert-Task Classification");
     classificationService.createClassification(classification);

lib/taskana-core/src/test/java/pro/taskana/impl/integration/WorkbasketServiceImplIntExplicitTest.java

@@ -45,9 +45,9 @@ import pro.taskana.security.WithAccessId;
 @ExtendWith(JaasExtension.class)
 class WorkbasketServiceImplIntExplicitTest {
 
-  static int counter = 0;
-
   private static final int SLEEP_TIME = 100;
+  @SuppressWarnings("checkstyle:DeclarationOrder")
+  static int counter = 0;
   private DataSource dataSource;
   private TaskanaEngineConfiguration taskanaEngineConfiguration;
   private TaskanaEngine taskanaEngine;

lib/taskana-core/src/test/java/pro/taskana/security/JaasExtension.java

@@ -37,9 +37,12 @@ public class JaasExtension implements InvocationInterceptor {
       }
     }
     subject.getPrincipals().addAll(principalList);
-    Subject.doAs(
+    Subject.doAs(subject, getObjectPrivilegedExceptionAction(invocation, invocationContext));
-        subject,
+  }
-        (PrivilegedExceptionAction<Object>) () -> {
+
+  private PrivilegedExceptionAction<Object> getObjectPrivilegedExceptionAction(
+      Invocation<Void> invocation, ReflectiveInvocationContext<Method> invocationContext) {
+    return () -> {
       try {
         invocation.proceed();
       } catch (Exception | Error e) {
@@ -49,6 +52,6 @@ public class JaasExtension implements InvocationInterceptor {
             "Execution of test failed: " + invocationContext.getExecutable().getName(), e);
       }
       return null;
-        });
+    };
   }
 }

lib/taskana-data/src/main/java/pro/taskana/sampledata/SqlReplacer.java

@@ -18,8 +18,7 @@ final class SqlReplacer {
   static final DateTimeFormatter DATE_TIME_FORMATTER =
       DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
 
-  private SqlReplacer() {
+  private SqlReplacer() {}
-  }
 
   static String getScriptAsSql(String dbProductName, LocalDateTime now, String scriptPath) {
     return parseAndReplace(getScriptBufferedStream(scriptPath), now, dbProductName);

lib/taskana-spring-example/src/test/java/pro/taskana/TaskanaTransactionIntTest.java

@@ -38,9 +38,7 @@ import pro.taskana.jobs.TaskCleanupJob;
 import pro.taskana.jobs.WorkbasketCleanupJob;
 import pro.taskana.transaction.TaskanaTransactionProvider;
 
-/**
+/** Test for internal transaction management. */
- * Test for internal transaction management.
- */
 @ExtendWith(SpringExtension.class)
 @SpringBootTest(
     classes = TaskanaConfigTestApplication.class,

qa/intellij/taskana_formatter_intellij.xml

@@ -146,8 +146,45 @@
       <option name="INDENT_SIZE" value="2" />
       <option name="CONTINUATION_INDENT_SIZE" value="4" />
       <option name="TAB_SIZE" value="2" />
+      <option name="USE_RELATIVE_INDENTS" value="true" />
     </indentOptions>
     <arrangement>
+      <tokens>
+        <token id="visibility" name="visibility">
+          <rules>
+            <rule>
+              <match>
+                <PUBLIC>true</PUBLIC>
+              </match>
+            </rule>
+            <rule>
+              <match>
+                <PROTECTED>true</PROTECTED>
+              </match>
+            </rule>
+            <rule>
+              <match>
+                <PACKAGE_PRIVATE>true</PACKAGE_PRIVATE>
+              </match>
+            </rule>
+            <rule>
+              <match>
+                <PRIVATE>true</PRIVATE>
+              </match>
+            </rule>
+          </rules>
+        </token>
+      </tokens>
+      <groups>
+        <group>
+          <type>GETTERS_AND_SETTERS</type>
+          <order>KEEP</order>
+        </group>
+        <group>
+          <type>OVERRIDDEN_METHODS</type>
+          <order>KEEP</order>
+        </group>
+      </groups>
       <rules>
         <section>
           <rule>

rest/taskana-rest-spring-example-common/src/main/java/pro/taskana/rest/security/SampleLoginModule.java

@@ -24,18 +24,6 @@ public class SampleLoginModule extends UsernamePasswordAuthenticationFilter impl
 
   private Subject subject;
 
-  @Override
-  public boolean abort() {
-    return true;
-  }
-
-  @Override
-  public boolean commit() {
-    addUserPrincipalToSubject();
-    addGroupSubjectsDerivedFromUsername();
-    return true;
-  }
-
   @Override
   public void initialize(
       Subject subject,
@@ -60,6 +48,18 @@ public class SampleLoginModule extends UsernamePasswordAuthenticationFilter impl
     return nameCallback.getName().equals(new String(passwordCallback.getPassword()));
   }
 
+  @Override
+  public boolean commit() {
+    addUserPrincipalToSubject();
+    addGroupSubjectsDerivedFromUsername();
+    return true;
+  }
+
+  @Override
+  public boolean abort() {
+    return true;
+  }
+
   @Override
   public boolean logout() {
     return true;

rest/taskana-rest-spring-example-common/src/test/java/pro/taskana/jobs/AsyncUpdateJobIntTest.java

@@ -41,8 +41,9 @@ import pro.taskana.rest.resource.TaskResourceAssembler;
     webEnvironment = SpringBootTest.WebEnvironment.RANDOM_PORT)
 class AsyncUpdateJobIntTest {
 
-  static RestTemplate template;
   private static final String CLASSIFICATION_ID = "CLI:100000000000000000000000000000000003";
+  @SuppressWarnings("checkstyle:DeclarationOrder")
+  static RestTemplate template;
   @Autowired ClassificationResourceAssembler classificationResourceAssembler;
   @Autowired TaskResourceAssembler taskResourceAssembler;
   @Autowired JobScheduler jobScheduler;

rest/taskana-rest-spring-example-wildfly/src/main/java/pro/taskana/wildfly/security/WildflyWebSecurityConfig.java

@@ -81,12 +81,28 @@ public class WildflyWebSecurityConfig extends WebSecurityConfig {
           private static final long serialVersionUID = 1L;
 
           @Override
-          public boolean isEnabled() {
+          public Collection<? extends GrantedAuthority> getAuthorities() {
-            return true;
+            List<GrantedAuthority> authorities = new ArrayList<>();
+            SecurityIdentity securityIdentity = getSecurityIdentity();
+            if (securityIdentity != null) {
+              Roles roles = securityIdentity.getRoles();
+              roles.forEach(role -> authorities.add(new SimpleGrantedAuthority(role)));
+            }
+            return authorities;
           }
 
           @Override
-          public boolean isCredentialsNonExpired() {
+          public String getPassword() {
+            return (String) token.getCredentials();
+          }
+
+          @Override
+          public String getUsername() {
+            return token.getName();
+          }
+
+          @Override
+          public boolean isAccountNonExpired() {
             return true;
           }
 
@@ -96,29 +112,13 @@ public class WildflyWebSecurityConfig extends WebSecurityConfig {
           }
 
           @Override
-          public boolean isAccountNonExpired() {
+          public boolean isCredentialsNonExpired() {
             return true;
           }
 
           @Override
-          public String getUsername() {
+          public boolean isEnabled() {
-            return token.getName();
+            return true;
-          }
-
-          @Override
-          public String getPassword() {
-            return (String) token.getCredentials();
-          }
-
-          @Override
-          public Collection<? extends GrantedAuthority> getAuthorities() {
-            List<GrantedAuthority> authorities = new ArrayList<>();
-            SecurityIdentity securityIdentity = getSecurityIdentity();
-            if (securityIdentity != null) {
-              Roles roles = securityIdentity.getRoles();
-              roles.forEach(role -> authorities.add(new SimpleGrantedAuthority(role)));
-            }
-            return authorities;
           }
 
           private SecurityIdentity getSecurityIdentity() {

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/Mapping.java

@@ -3,7 +3,7 @@ package pro.taskana.rest;
 /** Collection of Url to Controller mappings. */
 public final class Mapping {
 
-  private static final String PRE = "/api/v1/";
+  public static final String PRE = "/api/v1/";
   public static final String URL_ACCESSID = PRE + "access-ids";
   public static final String URL_ACCESSID_GROUPS = URL_ACCESSID + "/groups";
   public static final String URL_CLASSIFICATIONS = PRE + "classifications";

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/resource/DistributionTargetListResource.java

@@ -17,15 +17,15 @@ public class DistributionTargetListResource extends PagedResources<DistributionT
     super(content, null, links);
   }
 
-  @Override
-  @JsonProperty("distributionTargets")
-  public Collection<DistributionTargetResource> getContent() {
-    return super.getContent();
-  }
-
   @Override
   @JsonIgnore
   public PageMetadata getMetadata() {
     return super.getMetadata();
   }
+
+  @Override
+  @JsonProperty("distributionTargets")
+  public Collection<DistributionTargetResource> getContent() {
+    return super.getContent();
+  }
 }

rest/taskana-rest-spring/src/main/java/pro/taskana/rest/resource/WorkbasketSummaryResourceAssembler.java

@@ -14,10 +14,7 @@ import pro.taskana.rest.WorkbasketController;
 import pro.taskana.rest.resource.PagedResources.PageMetadata;
 import pro.taskana.rest.resource.links.PageLinks;
 
-
+/** Resource assembler for {@link WorkbasketSummaryResource}. */
-/**
- * Resource assembler for {@link WorkbasketSummaryResource}.
- */
 @Component
 public class WorkbasketSummaryResourceAssembler
     extends ResourceAssemblerSupport<WorkbasketSummary, WorkbasketSummaryResource> {

rest/taskana-rest-spring/src/test/java/pro/taskana/rest/TaskControllerIntTest.java

@@ -281,8 +281,8 @@ class TaskControllerIntTest {
 
   @Test
   void testGetTaskWithAttachments() throws IOException {
-    final URL url = new URL(restHelper.toUrl("/api/v1/tasks/"
+    final URL url =
-        + "TKI:000000000000000000000000000000000002"));
+        new URL(restHelper.toUrl("/api/v1/tasks/" + "TKI:000000000000000000000000000000000002"));
     HttpURLConnection con = (HttpURLConnection) url.openConnection();
     con.setRequestMethod("GET");
     con.setRequestProperty("Authorization", "Basic YWRtaW46YWRtaW4=");

rest/taskana-rest-spring/src/test/java/pro/taskana/rest/security/SampleLoginModule.java

@@ -26,18 +26,6 @@ public class SampleLoginModule extends UsernamePasswordAuthenticationFilter impl
 
   private Subject subject;
 
-  @Override
-  public boolean abort() {
-    return true;
-  }
-
-  @Override
-  public boolean commit() {
-    addUserPrincipalToSubject();
-    addGroupSubjectsDerivedFromUsername();
-    return true;
-  }
-
   @Override
   public void initialize(
       Subject subject,
@@ -62,6 +50,18 @@ public class SampleLoginModule extends UsernamePasswordAuthenticationFilter impl
     return nameCallback.getName().equals(new String(passwordCallback.getPassword()));
   }
 
+  @Override
+  public boolean commit() {
+    addUserPrincipalToSubject();
+    addGroupSubjectsDerivedFromUsername();
+    return true;
+  }
+
+  @Override
+  public boolean abort() {
+    return true;
+  }
+
   @Override
   public boolean logout() {
     return true;