import java.util.Set;
import java.util.Vector;
-import org.eclipse.jface.util.Assert;
+//incastrix
+//import org.eclipse.jface.text.Assert;
+import org.eclipse.core.runtime.Assert;
import org.eclipse.jface.viewers.ILabelProvider;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.DisposeEvent;