Bug 315281 update copyrights for 3.6
bundles/org.eclipse.core.databinding.observable/src/org/eclipse/core/databinding/observable/Diffs.java
* @param addedKeys
	 * @param removedKeys
	 * @param changedKeys
	 * @param oldValues
	 * @param newValues
	 * @return a map diff
	 */
	public static MapDiff createMapDiff(final Set addedKeys,
			final Set removedKeys, final Set changedKeys, final Map oldValues,
			final Map newValues) {
		return new MapDiff() {
			public Set getAddedKeys() {
				return addedKeys;
			}
			public Set getChangedKeys() {
				return changedKeys;
			}
			public Object getNewValue(Object key) {
				return newValues.get(key);
			}
			public Object getOldValue(Object key) {
				return oldValues.get(key);
			}
			public Set getRemovedKeys() {
				return removedKeys;
			}
		};
	}
}