[482528] Make SiriusToolServices#executeOperation() return "self"

This avoids many runtime warnings/errors about the expression evaluation
returnin "null".

Bug: 482528
Change-Id: Ib876c750d5f9f8492690a9c3c211ed45097f8407
Signed-off-by: Pierre-Charles David <pierre-charles.david@obeo.fr>

1 files changed, 3 insertions, 1 deletions

diff --git a/incubation/org.eclipse.sirius.ui.properties/src/org/eclipse/sirius/ui/properties/internal/SiriusToolServices.java b/incubation/org.eclipse.sirius.ui.properties/src/org/eclipse/sirius/ui/properties/internal/SiriusToolServices.java
index ff57bc67dd..a86f484563 100644
--- a/incubation/org.eclipse.sirius.ui.properties/src/org/eclipse/sirius/ui/properties/internal/SiriusToolServices.java
+++ b/incubation/org.eclipse.sirius.ui.properties/src/org/eclipse/sirius/ui/properties/internal/SiriusToolServices.java
@@ -44,8 +44,9 @@ public class SiriusToolServices {
      *            The current EObject
      * @param initialCommandUri
      *            the URI of the operation to execute
+     * @return the model elemnt on which the tool was executed.
      */
-    public void executeOperation(EObject eObject, String initialCommandUri) {
+    public EObject executeOperation(EObject eObject, String initialCommandUri) {
         Session session = new EObjectQuery(eObject).getSession();
         ModelAccessor modelAccessor = session.getModelAccessor();
         TaskHelper taskHelper = new TaskHelper(modelAccessor, new NoUICallback());
@@ -69,6 +70,7 @@ public class SiriusToolServices {
             command.getTasks().add(task);
             session.getTransactionalEditingDomain().getCommandStack().execute(command);
         }
+        return eObject;
     }
 
     /**