Check if a composite is not dispose before setEnable

src/main/java/fr/soleil/comete/swt/CometeComposite.java

@@ -170,8 +170,10 @@ public abstract class CometeComposite<T extends Control> extends Composite imple
     }
 
     private void setSuperEnabled(boolean enabled) {
+        if (!isDisposed()) {
             super.setEnabled(enabled);
         }
+    }
 
     @Override
     public boolean isEnabled() {