diff --git a/.classpath b/.classpath
index 379bc98..10ccb85 100644
--- a/.classpath
+++ b/.classpath
@@ -28,9 +28,9 @@
 			<attribute name="org.eclipse.jst.component.nondependency" value=""/>
 		</attributes>
 	</classpathentry>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.7">
 		<attributes>
-			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="owner.project.facets" value="java"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="output" path="target/classes"/>
diff --git a/.project b/.project
index e3470d0..9b67c31 100644
--- a/.project
+++ b/.project
@@ -16,12 +16,12 @@
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<name>org.eclipse.wst.validation.validationbuilder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
 		<buildCommand>
-			<name>org.eclipse.wst.validation.validationbuilder</name>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
 			<arguments>
 			</arguments>
 		</buildCommand>
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index 6e80039..443e085 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -1,8 +1,8 @@
 eclipse.preferences.version=1
 org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
-org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.7
+org.eclipse.jdt.core.compiler.compliance=1.7
 org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
 org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
 org.eclipse.jdt.core.compiler.problem.forbiddenReference=warning
-org.eclipse.jdt.core.compiler.source=1.8
+org.eclipse.jdt.core.compiler.source=1.7
diff --git a/.settings/org.eclipse.wst.common.project.facet.core.xml b/.settings/org.eclipse.wst.common.project.facet.core.xml
index fb95c45..4f92af5 100644
--- a/.settings/org.eclipse.wst.common.project.facet.core.xml
+++ b/.settings/org.eclipse.wst.common.project.facet.core.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <faceted-project>
-  <installed facet="java" version="1.8"/>
   <installed facet="jst.utility" version="1.0"/>
+  <installed facet="java" version="1.7"/>
 </faceted-project>
diff --git a/.settings/org.eclipse.wst.validation.prefs b/.settings/org.eclipse.wst.validation.prefs
new file mode 100644
index 0000000..04cad8c
--- /dev/null
+++ b/.settings/org.eclipse.wst.validation.prefs
@@ -0,0 +1,2 @@
+disabled=06target
+eclipse.preferences.version=1
diff --git a/src/main/java/org/gcube/common/workspacetaskexecutor/shared/BaseTaskConfiguration.java b/src/main/java/org/gcube/common/workspacetaskexecutor/shared/BaseTaskConfiguration.java
index 875d9f7..e12812a 100644
--- a/src/main/java/org/gcube/common/workspacetaskexecutor/shared/BaseTaskConfiguration.java
+++ b/src/main/java/org/gcube/common/workspacetaskexecutor/shared/BaseTaskConfiguration.java
@@ -55,11 +55,11 @@ public interface BaseTaskConfiguration {
 
 
 	/**
-	 * Sets the access key to save this configuration in the workspace gcube properties.
+	 * Gets the owner.
 	 *
-	 * @param accessKey the access key
+	 * @return the owner
 	 */
-	void setConfigurationKey(String accessKey);
+	String getOwner();
 
 
 }
diff --git a/src/main/java/org/gcube/common/workspacetaskexecutor/shared/dataminer/TaskConfiguration.java b/src/main/java/org/gcube/common/workspacetaskexecutor/shared/dataminer/TaskConfiguration.java
index 78cd5c6..c5064b8 100644
--- a/src/main/java/org/gcube/common/workspacetaskexecutor/shared/dataminer/TaskConfiguration.java
+++ b/src/main/java/org/gcube/common/workspacetaskexecutor/shared/dataminer/TaskConfiguration.java
@@ -42,6 +42,7 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 	@JsonIgnoreProperties
 	private List<TaskParameter> listParameters; // optional
 	private String configurationKey;
+	private String owner;
 
 	/**
 	 * Instantiates a new task configuration.
@@ -56,19 +57,21 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 	 * @param configurationKey            the configuration key
 	 * @param taskId            the task id
 	 * @param taskDescription            the task description
+	 * @param owner the owner
 	 * @param scope the scope
 	 * @param maskedToken            the token
 	 * @param workspaceItemId            the workspace item id
 	 * @param listParameters            the map parameters
 	 */
 	public TaskConfiguration(
-		String configurationKey, String taskId, String taskDescription, String scope,
+		String configurationKey, String taskId, String taskDescription, String owner, String scope,
 		String maskedToken, String workspaceItemId,
 		List<TaskParameter> listParameters) {
 
 		setConfigurationKey(configurationKey);
 		this.taskId = taskId;
 		this.taskDescription = taskDescription;
+		this.owner = owner;
 		this.scope = scope;
 		this.maskedToken = maskedToken;
 		this.workspaceItemId = workspaceItemId;
@@ -77,6 +80,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Gets the scope.
+	 *
 	 * @return the scope
 	 */
 	public String getScope() {
@@ -86,6 +91,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Sets the scope.
+	 *
 	 * @param scope the scope to set
 	 */
 	public void setScope(String scope) {
@@ -106,17 +113,24 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 		return configurationKey;
 	}
 
-	/*
-	 * (non-Javadoc)
-	 * @see org.gcube.common.workspacetaskexecutor.shared.BaseTaskConfiguration#
-	 * setAccessKey(java.lang.String)
+	/**
+	 * Sets the configuration key.
+	 *
+	 * @param configurationKey the new configuration key
 	 */
-	@Override
 	public void setConfigurationKey(String configurationKey) {
 
 		this.configurationKey = configurationKey;
 	}
 
+	/* (non-Javadoc)
+	 * @see org.gcube.common.workspacetaskexecutor.shared.BaseTaskConfiguration#getOwner()
+	 */
+	@Override
+	public String getOwner() {
+
+		return owner;
+	}
 	/*
 	 * (non-Javadoc)
 	 * @see org.gcube.common.workspacetaskexecutor.TaskConfiguration#getTaskId()
@@ -149,6 +163,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Gets the list parameters.
+	 *
 	 * @return the listParameters
 	 */
 	public List<TaskParameter> getListParameters() {
@@ -158,6 +174,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Sets the list parameters.
+	 *
 	 * @param listParameters the listParameters to set
 	 */
 	public void setListParameters(List<TaskParameter> listParameters) {
@@ -218,6 +236,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Gets the masked token.
+	 *
 	 * @return the maskedToken
 	 */
 	public String getMaskedToken() {
@@ -227,6 +247,8 @@ public class TaskConfiguration implements BaseTaskConfiguration, Serializable {
 
 
 	/**
+	 * Sets the masked token.
+	 *
 	 * @param maskedToken the maskedToken to set
 	 */
 	public void setMaskedToken(String maskedToken) {