Bug 190061 [Metadata] Update @since tags for new API
Patch to follow
bundles/org.eclipse.jface.databinding/src/org/eclipse/jface/internal/databinding/provisional/viewers/UnorderedTreeContentProvider.java
/* (non-Javadoc)
         * @see org.eclipse.jface.internal.databinding.provisional.observable.set.AbstractObservableSet#getWrappedSet()
         */
        protected Set getWrappedSet() {
            return mapElementToTreeNode.keySet();
        }
        
        void doFireDiff(Set added, Set removed) {
            fireSetChange(Diffs.createSetDiff(added, removed));
        }
        
        public void fireSetChange(SetDiff diff) {
        	super.fireSetChange(diff);
        }
        void doFireStale(boolean isStale) {
            if (isStale) {
                fireStale();
            } else {
                fireSetChange(Diffs.createSetDiff(Collections.EMPTY_SET, Collections.EMPTY_SET));
            }
        }
        
        /* (non-Javadoc)
         * @see org.eclipse.jface.internal.databinding.provisional.observable.set.IObservableSet#getElementType()
         */
        public Object getElementType() {
            return new Object();
        }
    }