From e13faf21ee1dfe1f5dec75df9ef4dc42372b67b7 Mon Sep 17 00:00:00 2001
From: gmungoc <g.m.carstairs@dundee.ac.uk>
Date: Tue, 24 Apr 2018 15:08:26 +0100
Subject: [PATCH] JAL-2939 exit calc thread if no HMM in alignment

---
 src/jalview/workers/InformationThread.java |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/jalview/workers/InformationThread.java b/src/jalview/workers/InformationThread.java
index cf42425..d719189 100644
--- a/src/jalview/workers/InformationThread.java
+++ b/src/jalview/workers/InformationThread.java
@@ -44,6 +44,10 @@ public class InformationThread extends AlignCalcWorker
   @Override
   public void run()
   {
+    if (alignViewport.getAlignment().getHmmSequences().isEmpty())
+    {
+      return;
+    }
     if (calcMan.isPending(this))
     {
       return;
-- 
1.7.10.2