From 534653c4f58440e1ee709e60d93854161e879ed0 Mon Sep 17 00:00:00 2001
From: Jim Procter <jprocter@issues.jalview.org>
Date: Sat, 13 Aug 2016 16:29:09 +0100
Subject: [PATCH] JAL-2154 make sure we wait for constructor thread to finish

---
 src/jalview/gui/SequenceFetcher.java |    5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/jalview/gui/SequenceFetcher.java b/src/jalview/gui/SequenceFetcher.java
index e259913..a9df882 100755
--- a/src/jalview/gui/SequenceFetcher.java
+++ b/src/jalview/gui/SequenceFetcher.java
@@ -202,7 +202,8 @@ public class SequenceFetcher extends JPanel implements Runnable
   }
 
   private IProgressIndicator progressIndicator;
-  private boolean _isConstructing=false;
+
+  private volatile boolean _isConstructing = false;
 
   private List<AlignFrame> newAlframes = null;
 
@@ -266,7 +267,7 @@ public class SequenceFetcher extends JPanel implements Runnable
       try { Thread.sleep(50);
       } catch (Exception q)
       {
-        return Collections.EMPTY_LIST;
+        return Collections.emptyList();
       }
     }
     sf.newAlframes = new ArrayList<AlignFrame>();
-- 
1.7.10.2