diff --git a/src/main/java/org/gcube/portlets/user/workspace/server/util/DiffereceBeetweenInfoContactModel.java b/src/main/java/org/gcube/portlets/user/workspace/server/util/DiffereceBeetweenInfoContactModel.java
index 699b90f..54d1e14 100644
--- a/src/main/java/org/gcube/portlets/user/workspace/server/util/DiffereceBeetweenInfoContactModel.java
+++ b/src/main/java/org/gcube/portlets/user/workspace/server/util/DiffereceBeetweenInfoContactModel.java
@@ -65,32 +65,37 @@ public class DiffereceBeetweenInfoContactModel {
 		
 	}
 	
-//	/**
-//	 * test.
-//	 *
-//	 * @param args the arguments
-//	 */
-//	public static void main(String[] args) {
-//		
-//		List<InfoContactModel> listA = new ArrayList<InfoContactModel>();
-//		listA.add(new InfoContactModel("federico.defaveri", "federico.defaveri", "Federico de Faveri", false));
-//		listA.add(new InfoContactModel("antonio.gioia", "antonio.gioia", "Antonio Gioia",false));
+	/**
+	 * test.
+	 *
+	 * @param args the arguments
+	 */
+	/*public static void main(String[] args) {
+		
+		List<InfoContactModel> listA = new ArrayList<InfoContactModel>();
+		listA.add(new InfoContactModel("federico.defaveri", "federico.defaveri", "Federico de Faveri", false));
+		listA.add(new InfoContactModel("antonio.gioia", "antonio.gioia", "Antonio Gioia",false));
 //		listA.add(new InfoContactModel("fabio.sinibaldi", "fabio.sinibaldi", "Fabio Sinibaldi", false));
 //		listA.add(new InfoContactModel("pasquale.pagano", "pasquale.pagano", "Pasquale Pagano",false));
-//		listA.add(new InfoContactModel("francesco.mangiacrapa", "francesco.mangiacrapa", "Francesco Mangiacrapa",false));
-//		listA.add(new InfoContactModel("massimiliano.assante", "massimiliano.assante", "Massimiliano Assante",false));
-//		
-//		List<InfoContactModel> listB = new ArrayList<InfoContactModel>();
-//		
+		listA.add(new InfoContactModel("francesco.mangiacrapa", "francesco.mangiacrapa", "Francesco Mangiacrapa",false));
+		listA.add(new InfoContactModel("massimiliano.assante", "massimiliano.assante", "Massimiliano Assante",false));
+		
+		List<InfoContactModel> listB = new ArrayList<InfoContactModel>();
+		
 //		listB.add(new InfoContactModel("federico.defaveri", "federico.defaveri", "Federico de Faveri",false));
 //		listB.add(new InfoContactModel("fabio.sinibaldi", "fabio.sinibaldi", "Fabio Sinibaldi",false));
 //		listB.add(new InfoContactModel("antonio.gioia", "antonio.gioia", "Antonio Gioia",false));
 //		listB.add(new InfoContactModel("pasquale.pagano", "pasquale.pagano", "Pasquale Pagano",false));
-//		
-//		DiffereceBeetweenInfoContactModel diff = new DiffereceBeetweenInfoContactModel(listA, listB);
-//		
-//		System.out.println("the differce is: "+diff.getDifferentsContacts());
-//
-//	}	
+		listB.add(new InfoContactModel("francesco.mangiacrapa", "francesco.mangiacrapa", "Francesco Mangiacrapa",false));
+		listB.add(new InfoContactModel("massimiliano.assante", "massimiliano.assante", "Massimiliano Assante",false));
+		
+		DiffereceBeetweenInfoContactModel diff = new DiffereceBeetweenInfoContactModel(listA, listB);
+		
+		System.out.println("# differences: "+diff.getDifferentsContacts().size());
+
+		for (InfoContactModel infoContactModel : diff.getDifferentsContacts()) {
+			System.out.println("the differce is: "+infoContactModel.getLogin());
+		}
+	}	*/
 
 }