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/ContributionManager.java
public void appendToGroup(String groupName, IContributionItem item) {
        addToGroup(groupName, item, true);
    }
    /**
     * This method allows subclasses of <code>ContributionManager</code> to prevent
     * certain items in the contributions list.  <code>ContributionManager</code>
     * will either block or allow an addition based on the result of this method
     * call.  This can be used to prevent duplication, for example.
     * @param itemToAdd The contribution item to be added; may be <code>null</code>.
     * @return <code>true</code> if the addition should be allowed; 
     * <code>false</code> otherwise.  The default implementation allows all items.
     * @since 3.0
     */
    protected boolean allowItem(IContributionItem itemToAdd) {
        return true;
    }
    /**
     * Internal debug method for printing statistics about this manager
     * to <code>System.out</code>.
     */
    protected void dumpStatistics() {
        int size = 0;
        if (contributions != null) {
			size = contributions.size();
		}
        System.out.println(this.toString());
        System.out.println("   Number of elements: " + size);
        int sum = 0;
        for (int i = 0; i < size; i++) {
			if (((IContributionItem) contributions.get(i)).isVisible()) {