Bug 7235 [Contributions] Need dispose() for action delegates
bundles/org.eclipse.jface/src/org/eclipse/jface/action/MenuManager.java
* @return the menu id
 */
public String getId() {
	return id;
}
/**
 * Returns the SWT menu control for this menu manager.
 *
 * @return the menu control
 */
public Menu getMenu() {
	return menu;
}
/**
 * Returns the text shown in the menu.
 *
 * @return the menu text
 */
public String getMenuText() {
	return menuText;
}
/* (non-Javadoc)
 * Method declared on IContributionManager.
 */
public IContributionManagerOverrides getOverrides() {
	if (overrides == null) {
		if (parent == null) {
			overrides = new IContributionManagerOverrides() {
				public Boolean getEnabled(IContributionItem item) {
					return null;