Bug 7235 [Contributions] Need dispose() for action delegates
bundles/org.eclipse.jface/src/org/eclipse/jface/action/MenuManager.java
}
				public Integer getAccelerator(IContributionItem item) {
					return null;
				}
				public String getAcceleratorText(IContributionItem item) {
					return null;
				}
				public String getText(IContributionItem item) {
					return null;
				}
			};
		} else {
			overrides = parent.getOverrides();
		}
		super.setOverrides(overrides);
	}
	return overrides;
}
/**
 * Returns the parent contribution manager of this manger.
 * 
 * @return the parent contribution manager
 * @since 2.0
 */
public IContributionManager getParent() {
	return parent;
}
/* (non-Javadoc)
 * Method declared on IMenuManager.
 */