From: Ben Soares <bsoares@dundee.ac.uk>
Date: Tue, 25 Oct 2022 22:03:17 +0000 (+0100)
Subject: JAL-3772 silly NPE error fixed
X-Git-Tag: Release_2_11_3_0~23^2~4^2~28
X-Git-Url: http://source.jalview.org/gitweb/?a=commitdiff_plain;h=d9472f0a6405ed1666e64a500812b73ffbbd3b77;p=jalview.git

JAL-3772 silly NPE error fixed
---

diff --git a/src/jalview/project/Jalview2XML.java b/src/jalview/project/Jalview2XML.java
index 351fc04..9cec063 100644
--- a/src/jalview/project/Jalview2XML.java
+++ b/src/jalview/project/Jalview2XML.java
@@ -6602,12 +6602,15 @@ public class Jalview2XML
       return true;
 
     AlignFrame[] frames = Desktop.getAlignFrames();
-    for (int i = 0; i < frames.length; i++)
+    if (frames != null)
     {
-      if (frames[i] == null)
-        continue;
-      if (!frames[i].getViewport().savedUpToDate())
-        return false; // at least one alignment is not individually saved
+      for (int i = 0; i < frames.length; i++)
+      {
+        if (frames[i] == null)
+          continue;
+        if (!frames[i].getViewport().savedUpToDate())
+          return false; // at least one alignment is not individually saved
+      }
     }
     return true;
   }