X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fgui%2FSeqCanvas.java;h=77b893893e9c99f3abce3f25cc99dee966eb3e2c;hb=12fdd79d25527a93ee20ffa562899ec5b703e4d5;hp=a7ba0359fa3afba1e6c30c05178c61ce7941a598;hpb=2de8acfae59aced665e4c37ad0f7dcc2ed68818e;p=jalview.git

diff --git a/src/jalview/gui/SeqCanvas.java b/src/jalview/gui/SeqCanvas.java
index a7ba035..77b8938 100755
--- a/src/jalview/gui/SeqCanvas.java
+++ b/src/jalview/gui/SeqCanvas.java
@@ -633,7 +633,7 @@ public class SeqCanvas extends JComponent
       int blockStart = startRes;
       int blockEnd = endRes;
 
-      for (int i = 0; i < regions.size(); i++)
+      for (int i = 0; regions!=null && i < regions.size(); i++)
       {
         int[] region = (int[]) regions.elementAt(i);
         int hideStart = region[0];
@@ -694,7 +694,8 @@ public class SeqCanvas extends JComponent
     for (int i = startSeq; i < endSeq; i++)
     {
       nextSeq = av.alignment.getSequenceAt(i);
-
+      if (nextSeq==null)
+        continue;
       sr.drawSequence(nextSeq, av.alignment.findAllGroups(nextSeq),
               startRes, endRes, offset + ((i - startSeq) * av.charHeight));