[isidorus-cvs] r861 - branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base

[lgiessmann at common-lisp.net]

Author: lgiessmann
Date: Fri Sep  9 09:22:05 2011
New Revision: 861

Log:
gdl-frontend: Widgets: fixed a a potential bug in TmHelper

Modified:
   branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TmHelper.java

Modified: branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TmHelper.java
==============================================================================
--- branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TmHelper.java	Fri Sep  9 08:27:42 2011	(r860)
+++ branches/gdl-frontend/src/anaToMia/GDL_Widgets/src/us/isidor/gdl/anaToMia/Widgets/base/TmHelper.java	Fri Sep  9 09:22:05 2011	(r861)
@@ -235,7 +235,7 @@
 	
 	// returns true if the instance topic is an instance of the topic bound to typeSubectIdentifier
 	public static boolean isInstanceOf(Topic instance, String typeSubjectIdentifier){
-		if(instance == null) return false;
+		if(instance == null || typeSubjectIdentifier == null) return false;
 		TopicMap tm = instance.getTopicMap();
 		Topic type = tm.getTopicBySubjectIdentifier(tm.createLocator(typeSubjectIdentifier));
 		return isInstanceOf(instance, type);