Bug 315281 update copyrights for 3.6
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/ide/dialogs/ResourceTreeAndListGroup.java
*	Set the tree viewer's providers to those passed
     *
     *	@param contentProvider ITreeContentProvider
     *	@param labelProvider ILabelProvider
     */
    public void setTreeProviders(ITreeContentProvider contentProvider,
            ILabelProvider labelProvider) {
        treeViewer.setContentProvider(contentProvider);
        treeViewer.setLabelProvider(labelProvider);
    }
    /**
     * Set the comparator that is to be applied to self's tree viewer
     * 
     * @param comparator the comparator for the tree
     */
    public void setTreeComparator(ViewerComparator comparator) {
        treeViewer.setComparator(comparator);
    }
    /**
     *	Adjust the collection of references to white-checked tree elements appropriately.
     *
     *	@param treeElement java.lang.Object
     *	@param isWhiteChecked boolean
     */
    protected void setWhiteChecked(Object treeElement, boolean isWhiteChecked) {
        if (isWhiteChecked) {
            if (!whiteCheckedTreeItems.contains(treeElement)) {
				whiteCheckedTreeItems.add(treeElement);
			}
        } else {