X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Fjalview%2Fbin%2Fargparser%2FArgValuesMap.java;h=340d65af8b5c0b583d7811072ac92b6b12fc18e7;hb=ab54fa42cc7b67c41afde9411f183cac60743071;hp=cbc6faaa5525a0d594fb374db5889f43a5bbbc1a;hpb=b4643d75fb09207306e83fa1fee277cc2fd089c5;p=jalview.git

diff --git a/src/jalview/bin/argparser/ArgValuesMap.java b/src/jalview/bin/argparser/ArgValuesMap.java
index cbc6faa..340d65a 100644
--- a/src/jalview/bin/argparser/ArgValuesMap.java
+++ b/src/jalview/bin/argparser/ArgValuesMap.java
@@ -147,6 +147,8 @@ public class ArgValuesMap
     // specify an id in the subValues so wouldn't need to be guessed).
     ArgValue closestAv = null;
     int thisArgIndex = thisAv.getArgIndex();
+    if (!containsArg(a))
+      return null;
     ArgValues compareAvs = this.getArgValues(a);
     int closestNextIndex = Integer.MAX_VALUE;
     for (ArgValue av : compareAvs.getArgValueList())