private void createWorkingSetGroup() {
	String[] workingSetIds = new String[] {"org.eclipse.ui.resourceWorkingSetPage",  //$NON-NLS-1$
	"org.eclipse.wst.jsdt.ui.JavaWorkingSetPage"};  //$NON-NLS-1$
   	workingSetGroup = new WorkingSetGroup((Composite)getControl(), currentSelection, workingSetIds);
}