Coms might be null

diff --git a/src/jalview/gui/PaintRefresher.java b/src/jalview/gui/PaintRefresher.java
index e05f44d..ea28568 100755 (executable)
--- a/src/jalview/gui/PaintRefresher.java
+++ b/src/jalview/gui/PaintRefresher.java
@@ -76,6 +76,9 @@ public class PaintRefresher
     {\r
         Component temp;\r
         Vector coms = (Vector) components.get(al);\r
+        if(coms==null)\r
+          return;\r
+\r
         Enumeration e = coms.elements();\r
 \r
         while (e.hasMoreElements())\r