From: hansonr <hansonr@STO24954W.ad.stolaf.edu>
Date: Sun, 22 Jul 2018 22:27:03 +0000 (-0500)
Subject: allows for null Jmol viewer
X-Git-Tag: Release_2_11_4_0~45^2~18^2~513
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=b513684c725997c77341f30ce4e584cf9f7cdfed;p=jalview.git

allows for null Jmol viewer
---

diff --git a/src/jalview/ext/jmol/JalviewJmolBinding.java b/src/jalview/ext/jmol/JalviewJmolBinding.java
index 8832278..258d806 100644
--- a/src/jalview/ext/jmol/JalviewJmolBinding.java
+++ b/src/jalview/ext/jmol/JalviewJmolBinding.java
@@ -166,7 +166,8 @@ public abstract class JalviewJmolBinding extends AAStructureBindingModel
   {
     // remove listeners for all structures in viewer
     getSsm().removeStructureViewerListener(this, this.getStructureFiles());
-    viewer.dispose();
+    if (viewer != null)
+      viewer.dispose();
     lastCommand = null;
     viewer = null;
     releaseUIResources();