Code quality impovements, additional tests to find target filter queries

Signed-off-by: Dominik Herbst <dominik.herbst@bosch-si.com>

hawkbit-mgmt-api/src/main/java/org/eclipse/hawkbit/mgmt/json/model/targetfilter/MgmtTargetFilterQuery.java

@@ -10,14 +10,14 @@ package org.eclipse.hawkbit.mgmt.json.model.targetfilter;
 
 import org.eclipse.hawkbit.mgmt.json.model.MgmtBaseEntity;
 
-import com.fasterxml.jackson.annotation.JsonIgnore;
 import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
 import com.fasterxml.jackson.annotation.JsonInclude;
 import com.fasterxml.jackson.annotation.JsonInclude.Include;
 import com.fasterxml.jackson.annotation.JsonProperty;
 
 /**
- * A json annotated rest model for Target to RESTful API representation.
+ * A json annotated rest model for Target Filter Queries to RESTful API
+ * representation.
  *
  */
 @JsonInclude(Include.ALWAYS)
@@ -36,48 +36,26 @@ public class MgmtTargetFilterQuery extends MgmtBaseEntity {
     @JsonProperty
     private Long autoAssignDistributionSet;
 
-    /**
-     * @return the filterId
-     */
     public Long getFilterId() {
         return filterId;
     }
 
-    /**
-     * @param filterId
-     *            the filterId to set
-     */
     public void setFilterId(final Long filterId) {
         this.filterId = filterId;
     }
 
-    /**
-     * @return the name
-     */
     public String getName() {
         return name;
     }
 
-    /**
-     * @param name
-     *            the name to set
-     */
     public void setName(final String name) {
         this.name = name;
     }
 
-    /**
-     * @return the query
-     */
     public String getQuery() {
         return query;
     }
 
-    /**
-     * @param query
-     *            the query to set
-     */
-    @JsonIgnore
     public void setQuery(final String query) {
         this.query = query;
     }
@@ -86,7 +64,6 @@ public class MgmtTargetFilterQuery extends MgmtBaseEntity {
         return autoAssignDistributionSet;
     }
 
-    @JsonIgnore
     public void setAutoAssignDistributionSet(final Long autoAssignDistributionSet) {
         this.autoAssignDistributionSet = autoAssignDistributionSet;
     }

hawkbit-mgmt-api/src/main/java/org/eclipse/hawkbit/mgmt/json/model/targetfilter/MgmtTargetFilterQueryRequestBody.java

@@ -32,9 +32,8 @@ public class MgmtTargetFilterQueryRequestBody {
      * @param name
      *            the name to set
      */
-    public MgmtTargetFilterQueryRequestBody setName(final String name) {
+    public void setName(final String name) {
         this.name = name;
-        return this;
     }
 
     /**