Bug 315281 update copyrights for 3.6
bundles/org.eclipse.core.databinding.property/src/org/eclipse/core/databinding/property/map/DelegatingMapProperty.java
protected Map doGetMap(Object source) {
			return Collections.EMPTY_MAP;
		}
		protected void doSetMap(Object source, Map map, MapDiff diff) {
		}
		protected void doSetMap(Object source, Map map) {
		}
		protected void doUpdateMap(Object source, MapDiff diff) {
		}
		public INativePropertyListener adaptListener(
				ISimplePropertyListener listener) {
			return null;
		}
		public Object getKeyType() {
			return keyType;
		}
		public Object getValueType() {
			return valueType;
		}
	}
}