Index: lams_learning/src/java/org/lamsfoundation/lams/learning/service/LearnerService.java
===================================================================
RCS file: /usr/local/cvsroot/lams_learning/src/java/org/lamsfoundation/lams/learning/service/LearnerService.java,v
diff -u -r1.106 -r1.107
--- lams_learning/src/java/org/lamsfoundation/lams/learning/service/LearnerService.java	9 Apr 2013 12:46:02 -0000	1.106
+++ lams_learning/src/java/org/lamsfoundation/lams/learning/service/LearnerService.java	12 Dec 2013 10:34:46 -0000	1.107
@@ -1062,8 +1062,13 @@
 	    } catch (InterruptedException e1) {
 		// do nothing, it does not hurt us
 	    }
-
-	    toolSession = lamsCoreToolService.createToolSession(learner, toolActivity, lesson);
+	    try {
+		toolSession = lamsCoreToolService.createToolSession(learner, toolActivity, lesson);
+	    } catch (DataIntegrityViolationException e1) {
+		LearnerService.log
+			.warn("There was an attempt to create two tool sessions with the same name. Retry failed, carrying on",
+				e1);
+	    }
 	}
 	if (toolSession != null) {
 	    toolActivity.getToolSessions().add(toolSession);