Bug 75824 [UI] Menu in the package explorer view doesn't work anymore
With Eclipse in Linux/GTK Menu in the package explorer doesn't work anymore. We cannot "select a working set", "filter", "sort" etc... in this view
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/workingsets/WorkingSetMenuContributionItem.java
IWorkingSetManager manager= PlatformUI.getWorkbench().getWorkingSetManager();
				fActionGroup.setWorkingSet(fWorkingSet, true);
				manager.addRecentWorkingSet(fWorkingSet);
			}
		});
	}
	
	/*
	 * @see org.eclipse.jface.action.ContributionItem#dispose()
	 * @since 3.0
	 */
	public void dispose() {
		if (fImage != null && !fImage.isDisposed())
			fImage.dispose();
		fImage= null;
		
		super.dispose();
	}
	
	/*
	 * @see org.eclipse.jface.action.IContributionItem#isDynamic()
	 */
	public boolean isDynamic() {
		return true;
	}
	static String getId(int id) {
		return WorkingSetMenuContributionItem.class.getName() + "." + id;  
	}
}