[530555] Removing unnecessary overrides.
diff --git a/plugins/org.eclipse.uml2.uml.editor/src/org/eclipse/uml2/uml/editor/presentation/UMLEditor.java b/plugins/org.eclipse.uml2.uml.editor/src/org/eclipse/uml2/uml/editor/presentation/UMLEditor.java
index 4f5ff53..19d148b 100644
--- a/plugins/org.eclipse.uml2.uml.editor/src/org/eclipse/uml2/uml/editor/presentation/UMLEditor.java
+++ b/plugins/org.eclipse.uml2.uml.editor/src/org/eclipse/uml2/uml/editor/presentation/UMLEditor.java
@@ -8,7 +8,7 @@
  * Contributors:
  *   IBM - initial API and implementation
  *   Kenn Hussey (Embarcadero Technologies) - 204200, 215418, 156879, 227392, 226178, 232332, 247980
- *   Kenn Hussey - 286329, 323181, 522658, 528925
+ *   Kenn Hussey - 286329, 323181, 522658, 528925, 530555
  *   Kenn Hussey (CEA) - 327039, 351774, 364419, 292633, 397324, 204658, 173565, 408612, 414970, 427833, 433216, 443017, 434958, 433768
  *   Christian W. Damus - 355218
  *   Christian W. Damus (CEA) - 286444
@@ -1351,7 +1351,7 @@
 	 * <!-- end-user-doc -->
 	 * @generated not
 	 */
-	@SuppressWarnings("rawtypes")
+	@SuppressWarnings({"rawtypes", "unchecked"})
 	@Override
 	public Object getAdapter(Class key) {
 		if (key.equals(IContentOutlinePage.class)) {
@@ -1418,7 +1418,7 @@
 							.setSelection(
 								new StructuredSelection(editingDomain
 									.getResourceSet().getResources().get(0)),
-							true);
+								true);
 					}
 				}
 
@@ -2138,10 +2138,11 @@
 				.toArray(new IPropertyDescriptor[propertyDescriptors.size()]);
 		}
 
+		@Override
 		protected IItemPropertyDescriptor getItemPropertyDescriptor(
 				Object propertyId) {
-			IItemPropertyDescriptor itemPropertyDescriptor = itemPropertySource
-				.getPropertyDescriptor(object, propertyId);
+			IItemPropertyDescriptor itemPropertyDescriptor = super.getItemPropertyDescriptor(
+				propertyId);
 
 			return itemPropertyDescriptor == null
 				&& itemPropertySource instanceof ElementItemProvider
@@ -2150,37 +2151,6 @@
 							propertyId)
 					: itemPropertyDescriptor;
 		}
-
-		@Override
-		public Object getPropertyValue(Object propertyId) {
-			return getItemPropertyDescriptor(propertyId)
-				.getPropertyValue(object);
-		}
-
-		@Override
-		public boolean isPropertySet(Object propertyId) {
-			return getItemPropertyDescriptor(propertyId).isPropertySet(object);
-		}
-
-		@Override
-		public void resetPropertyValue(Object propertyId) {
-			getItemPropertyDescriptor(propertyId).resetPropertyValue(object);
-		}
-
-		@Override
-		public void setPropertyValue(Object propertyId, Object value) {
-			getItemPropertyDescriptor(propertyId).setPropertyValue(object,
-				value);
-		}
-
-		@Override
-		public boolean isPropertyResettable(Object propertyId) {
-			IItemPropertyDescriptor propertyDescriptor = getItemPropertyDescriptor(
-				propertyId);
-			return propertyDescriptor.canSetProperty(object)
-				&& propertyDescriptor.isPropertySet(object);
-		}
-
 	}
 
 	protected static class UMLPropertyDescriptor
diff --git a/plugins/org.eclipse.uml2/about.properties b/plugins/org.eclipse.uml2/about.properties
index a3b1da6..b2c4fa1 100644
--- a/plugins/org.eclipse.uml2/about.properties
+++ b/plugins/org.eclipse.uml2/about.properties
@@ -1,4 +1,4 @@
-# Copyright (c) 2006, 2017 IBM Corporation, Embarcadero Technologies, and others.
+# Copyright (c) 2006, 2018 IBM Corporation, Embarcadero Technologies, and others.
 # All rights reserved.   This program and the accompanying materials
 # are made available under the terms of the Eclipse Public License v1.0
 # which accompanies this distribution, and is available at
@@ -7,7 +7,7 @@
 # Contributors: 
 #   IBM - initial API and implementation
 #   Kenn Hussey (Embarcadero Technologies) - 219804, 204200
-#   Kenn Hussey - 323181
+#   Kenn Hussey - 323181, 530555
 #   Kenn Hussey (CEA) - 286404, 485756, 511674
 #
 
@@ -24,5 +24,5 @@
 Version: {featureVersion}\n\
 Build id: {0}\n\
 \n\
-(c) Copyright Eclipse contributors and others 2003, 2017.  All rights reserved.\n\
+(c) Copyright Eclipse contributors and others 2003, 2018.  All rights reserved.\n\
 Visit http://www.eclipse.org/uml2