public void canApply() throws ConfigurationException {
   for (ModuleConfigurationEditor editor : myEditors) {
     if (editor instanceof ModuleElementsEditor) {
       ((ModuleElementsEditor) editor).canApply();
     }
   }
 }
 @Override
 public void canApply() throws ConfigurationException {
   super.canApply();
   if (myClasspathFormatPanel != null) {
     final String storageID = myClasspathFormatPanel.getSelectedClasspathFormat();
     ClasspathStorage.getProvider(storageID).assertCompatible(getModel());
   }
 }