Bug 120463 Need to integrate ICU4J into platform
Now that ICU4J will be in the build for M4, we need to work on getting the required changes into the platform. Doug will submit the changes as a set of patches which I will delegate to plugin owners.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/StructuredViewer.java
*            the transfer types that are supported by the drop operation
	 * @param listener
	 *            the callback that will be invoked after the drag and drop
	 *            operation finishes
	 * @see org.eclipse.swt.dnd.DND
	 */
	public void addDropSupport(int operations, Transfer[] transferTypes,
			final DropTargetListener listener) {
		Control control = getControl();
		DropTarget dropTarget = new DropTarget(control, operations);
		dropTarget.setTransfer(transferTypes);
		dropTarget.addDropListener(listener);
	}
	/**
	 * Adds the given filter to this viewer, and triggers refiltering and
	 * resorting of the elements.
	 * 
	 * @param filter
	 *            a viewer filter
	 */
	public void addFilter(ViewerFilter filter) {
		if (filters == null)
			filters = new ArrayList();
		filters.add(filter);
		refresh();
	}
	/**
	 * Asserts that the given array of elements is itself non- <code>null</code>
	 * and contains no <code>null</code> elements.
	 *