Index: lams_common/src/java/org/lamsfoundation/lams/qb/model/QbQuestion.java
===================================================================
diff -u -rf5bcf9323324eb4d5add901d9e7a23c33050533a -rf32e50c400c8f387d531315fc1def501aaafb15c
--- lams_common/src/java/org/lamsfoundation/lams/qb/model/QbQuestion.java	(.../QbQuestion.java)	(revision f5bcf9323324eb4d5add901d9e7a23c33050533a)
+++ lams_common/src/java/org/lamsfoundation/lams/qb/model/QbQuestion.java	(.../QbQuestion.java)	(revision f32e50c400c8f387d531315fc1def501aaafb15c)
@@ -499,6 +499,9 @@
     }
 
     public static String getCodeStyleMime(Integer codeStyle) {
+	if (codeStyle == null) {
+	    return null;
+	}
 	switch (codeStyle) {
 	    case CODE_STYLE_PYTHON:
 		return "text/x-python";