X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fdatamodel%2FSequence.java;h=c78ec2266c93deb6aabb22e73261263c8f49143d;hb=ea94f71e4b8bd5ceda06e696f6e92723cc2d9db1;hp=37bb7a9c168c893ec711399e4bf975a796608ac9;hpb=2a9991ef1eb02d97e9c8ed1644f292117ae6f600;p=jalview.git

diff --git a/src/jalview/datamodel/Sequence.java b/src/jalview/datamodel/Sequence.java
index 37bb7a9..c78ec22 100755
--- a/src/jalview/datamodel/Sequence.java
+++ b/src/jalview/datamodel/Sequence.java
@@ -20,6 +20,9 @@
  */
 package jalview.datamodel;
 
+import jalview.analysis.AlignSeq;
+import jalview.util.StringUtils;
+
 import java.util.ArrayList;
 import java.util.Enumeration;
 import java.util.List;
@@ -27,9 +30,6 @@ import java.util.Vector;
 
 import fr.orsay.lri.varna.models.rna.RNA;
 
-import jalview.analysis.AlignSeq;
-import jalview.util.StringUtils;
-
 /**
  * 
  * Implements the SequenceI interface for a char[] based sequence object.
@@ -768,7 +768,7 @@ public class Sequence extends ASequence implements SequenceI
   public void deleteChars(int i, int j)
   {
     int newstart = start, newend = end;
-    if (i >= sequence.length)
+    if (i >= sequence.length || i < 0)
     {
       return;
     }