Updated ActivityExecution::terminate. (OMG Issue FUML12-11/18362)

Author: seidewitz

org.modeldriven.fuml/src/main/java/fUML/Semantics/Activities/IntermediateActivities/ActivityExecution.java

@@ -1,9 +1,8 @@
-
 /*
  * Initial version copyright 2008 Lockheed Martin Corporation, except  
  * as stated in the file entitled Licensing-Information. 
  * 
- * All modifications copyright 2009-2013 Data Access Technologies, Inc.
+ * All modifications copyright 2009-2017 Data Access Technologies, Inc.
  *
  * Licensed under the Academic Free License version 3.0 
  * (http://www.opensource.org/licenses/afl-3.0.php), except as stated 
@@ -13,20 +12,9 @@
 package fUML.Semantics.Activities.IntermediateActivities;
 
 import fUML.Debug;
-import UMLPrimitiveTypes.*;
-
-import fUML.Syntax.*;
-import fUML.Syntax.Classes.Kernel.*;
-import fUML.Syntax.CommonBehaviors.BasicBehaviors.*;
-import fUML.Syntax.CommonBehaviors.Communications.*;
 import fUML.Syntax.Activities.IntermediateActivities.*;
-import fUML.Syntax.Actions.BasicActions.*;
-
-import fUML.Semantics.*;
 import fUML.Semantics.Classes.Kernel.*;
 import fUML.Semantics.CommonBehaviors.BasicBehaviors.*;
-import fUML.Semantics.Actions.BasicActions.*;
-import fUML.Semantics.Loci.*;
 
 public class ActivityExecution extends
 		fUML.Semantics.CommonBehaviors.BasicBehaviors.Execution {
@@ -101,7 +89,9 @@ public void terminate() {
 		// Terminate all node activations (which will ultimately result in the
 		// activity execution completing).
 
-		this.activationGroup.terminateAll();
+		if (this.activationGroup != null) { 
+			this.activationGroup.terminateAll();
+		}
 	} // terminate
 
 } // ActivityExecution