Bug 161848 [JFace] Javadoc quality in org.eclipse.jface
As Tod announced on the platform-ui mailing list he wants to set the compiler settings to stricter mode so to ensure the javadoc quality. Because the weather was so lousy in Austria today I tried it and took the effort (~2 hours). I'll attach the patches package wise. This is a starting point.
bundles/org.eclipse.jface/src/org/eclipse/jface/action/SubContributionManager.java
* Maps each item in the manager to a wrapper.  The wrapper is used to 
     * control the visibility of each item.
     */
    private Map mapItemToWrapper = new HashMap();
    /**
     * The visibility of the manager,
     */
    private boolean visible = false;
    /**
     * Constructs a new <code>SubContributionManager</code>
     *
     * @param mgr the parent contribution manager.  All contributions made to the
     *      <code>SubContributionManager</code> are forwarded and appear in the
     *      parent manager.
     */
    public SubContributionManager(IContributionManager mgr) {
        super();
        parentMgr = mgr;
    }
    /* (non-Javadoc)
     * Method declared on IContributionManager.
     */
    public void add(IAction action) {
        add(new ActionContributionItem(action));
    }
    /* (non-Javadoc)
     * Method declared on IContributionManager.
     */
    public void add(IContributionItem item) {
        item.setParent(this);