From: Jim Procter <jprocter@issues.jalview.org>
Date: Wed, 28 Sep 2016 14:20:46 +0000 (+0100)
Subject: JAL-2210 patch for when no DBRefs on sequence
X-Git-Tag: Release_2_10_0~20^2~30
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;ds=sidebyside;h=08f51db72b37addca7babd1582bfe5c6eaab2f2c;p=jalview.git

JAL-2210 patch for when no DBRefs on sequence
---

diff --git a/src/jalview/util/DBRefUtils.java b/src/jalview/util/DBRefUtils.java
index 2d09088..757fc4d 100755
--- a/src/jalview/util/DBRefUtils.java
+++ b/src/jalview/util/DBRefUtils.java
@@ -650,8 +650,16 @@ public class DBRefUtils
       return;
     }
     List<DBRefEntry> selfs = new ArrayList<DBRefEntry>();
-    selfs.addAll(Arrays.asList(selectDbRefs(!sequence.isProtein(),
-            sequence.getDBRefs())));
+    {
+      DBRefEntry[] selfArray = selectDbRefs(!sequence.isProtein(),
+              sequence.getDBRefs());
+      if (selfArray == null || selfArray.length == 0)
+      {
+        // nothing to do
+        return;
+      }
+      selfs.addAll(Arrays.asList(selfArray));
+    }
 
     // filter non-primary refs
     for (DBRefEntry p : pr)