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[jalview.git] / src / jalview / appletgui / SequenceRenderer.java

diff --git a/src/jalview/appletgui/SequenceRenderer.java b/src/jalview/appletgui/SequenceRenderer.java
index 510b32f..480a506 100755 (executable)
--- a/src/jalview/appletgui/SequenceRenderer.java
+++ b/src/jalview/appletgui/SequenceRenderer.java
@@ -99,6 +99,9 @@ public class SequenceRenderer
   public void drawSequence(SequenceI seq, SequenceGroup[] sg,\r
                            int start, int end,  int y1)\r
   {\r
+    if(seq==null)\r
+      return;\r
+\r
     allGroups = sg;\r
 \r
     drawBoxes(seq, start, end,  y1);\r