diff --git a/.classpath b/.classpath
index 3468a2b..6991d1a 100644
--- a/.classpath
+++ b/.classpath
@@ -10,6 +10,7 @@
 		<attributes>
 			<attribute name="optional" value="true"/>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER">
@@ -25,6 +26,7 @@
 	<classpathentry excluding="**" kind="src" output="target/test-classes" path="src/test/resources">
 		<attributes>
 			<attribute name="maven.pomderived" value="true"/>
+			<attribute name="test" value="true"/>
 		</attributes>
 	</classpathentry>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8">
diff --git a/.settings/org.eclipse.jdt.core.prefs b/.settings/org.eclipse.jdt.core.prefs
index b90405e..e2ceea1 100644
--- a/.settings/org.eclipse.jdt.core.prefs
+++ b/.settings/org.eclipse.jdt.core.prefs
@@ -10,4 +10,5 @@ org.eclipse.jdt.core.compiler.debug.sourceFile=generate
 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.release=disabled
 org.eclipse.jdt.core.compiler.source=1.7
diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/openlayerwidget/GeoJsonAreaSelectionDialog.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/openlayerwidget/GeoJsonAreaSelectionDialog.java
index 5c91666..b1b486a 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/openlayerwidget/GeoJsonAreaSelectionDialog.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/openlayerwidget/GeoJsonAreaSelectionDialog.java
@@ -31,6 +31,7 @@ public class GeoJsonAreaSelectionDialog extends AreaSelectionDialog{
 	 * Instantiates a new geo json area selection dialog.
 	 */
 	public GeoJsonAreaSelectionDialog() {
+		super();
 
 		//THE HANDLER
 		SelectAreaDialogEventHandler handler = new SelectAreaDialogEventHandler() {
@@ -82,22 +83,22 @@ public class GeoJsonAreaSelectionDialog extends AreaSelectionDialog{
 			var ol = $wnd.ol;
 			var geojson_options = {};
 			var wkt_format = new ol.format.WKT();
-			var testFeature = wkt_format.readFeature(wktData);
+			var wktFeature = wkt_format.readFeature(wktData);
+			//console.log('WKT feature: '+wktFeature);
 			var wkt_options = {};
 			var geojson_format = new ol.format.GeoJSON(wkt_options);
-			var out = geojson_format.writeFeature(testFeature);
-			//window.getELementById("my-id").innerhtml(out);
-			//alert(out);
-			console.log(out)
-			return out;
+			console.log('geojson_format: '+geojson_format);
+			var geoJsonFeature = geojson_format.writeFeature(wktFeature);
+			//console.log('GeoJSON Feature: '+geoJsonFeature);
+			return geoJsonFeature;
 		}catch(err) {
   			console.log(err.message);
   			return null;
 		}
 	}-*/;
 
-	public static native String print(String data) /*-{
-		console.log(out)
+	public static native String print(String txt) /*-{
+		console.log(txt)
 	}-*/;
 
 
@@ -106,32 +107,39 @@ public class GeoJsonAreaSelectionDialog extends AreaSelectionDialog{
 	 *
 	 * @param wktTxt the wkt txt
 	 * @return the string
+	 * @throws Exception the exception
 	 */
-	public String wktToGeoJSON(String wktTxt){
-		String geoJSON = convertWKTToGeoJSON(wktTxt);
-		//Window.alert("geoJSON: "+geoJSON);
-		print("geoJSON: "+geoJSON);
-
-		if(geoJSON==null)
-			return null;
-
-		JavaScriptObject toJSON = JsonUtils.safeEval(geoJSON);
-		JSONObject objJson = new JSONObject(toJSON);
-		return objJson.get("geometry").toString();
+	public String wktToGeoJSON(String wktTxt) throws Exception{
+		try {
+			String geoJSON = convertWKTToGeoJSON(wktTxt);
+			//Window.alert("geoJSON: "+geoJSON);
+			print("geoJSON: "+geoJSON);
+	
+			if(geoJSON==null)
+				throw new Exception();
+	
+			JavaScriptObject toJSON = JsonUtils.safeEval(geoJSON);
+			JSONObject objJson = new JSONObject(toJSON);
+			return objJson.get("geometry").toString();
+		}catch(Exception e) {
+			//silent
+			throw new Exception("Sorry, an error occurred while getting GeoJSON format for the drawn Geometry");
+		}
 	}
 
 	/**
 	 * Gets the WKT to geo json.
 	 *
 	 * @return the WKT to geo json
+	 * @throws Exception the exception
 	 */
-	public String getWKTToGeoJSON(){
+	public String getWKTToGeoJSON() throws Exception{
 
 		if(wktArea==null){
 			print("wktArea is null");
-			return null;
+			throw new Exception("Sorry, an error occurred while reading the drawn Geometry");
 		}
-
+		//print("wktArea is: "+wktArea);
 		return wktToGeoJSON(wktArea);
 	}
 
diff --git a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/metadata/MetaDataFieldSkeleton.java b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/metadata/MetaDataFieldSkeleton.java
index 18c978c..f361666 100644
--- a/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/metadata/MetaDataFieldSkeleton.java
+++ b/src/main/java/org/gcube/portlets/widgets/ckandatapublisherwidget/client/ui/metadata/MetaDataFieldSkeleton.java
@@ -127,7 +127,6 @@ public class MetaDataFieldSkeleton extends Composite{
 
 		case GeoJSON:
 			//MANAGED By FRANCESCO
-			// start and end range date
 			final VerticalPanel containerGeoJSON = new VerticalPanel();
 			//containerGeoJSON.setWidth("100%");
 
@@ -150,12 +149,16 @@ public class MetaDataFieldSkeleton extends Composite{
 					Command fillGeoJSONArea = new Command() {
 						   public void execute() {
 
-							   String geoJsonGeom = dialog.getWKTToGeoJSON();
-							   if(geoJsonGeom!=null)
-								   textArea.setText(geoJsonGeom);
-							   else{
-								   textArea.setText("");
-								   containerGeoJSON.add(new Alert("Error on drawing the Geometry", AlertType.WARNING, true));
+							   try {
+								   String geoJsonGeom = dialog.getWKTToGeoJSON();
+								   if(geoJsonGeom!=null)
+									   textArea.setText(geoJsonGeom);
+								   else{
+									   textArea.setText("");
+									   containerGeoJSON.add(new Alert("Sorry, an error occurred by reading the Geometry", AlertType.ERROR, true));
+								   }
+							   }catch (Exception e) {
+								   containerGeoJSON.add(new Alert(e.getMessage(), AlertType.ERROR, true));
 							   }
 						   }
 					};