From a3d628bce3c00840375323a2f6bf7405fdaa250e Mon Sep 17 00:00:00 2001
From: Martin Ritchie <ritchiem@apache.org>
Date: Tue, 3 Mar 2009 18:59:04 +0000
Subject: Prevent NullPointerException when backing store file is deleted
 externally

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@749697 13f79535-47bb-0310-9956-ffa450edef68
---
 .../qpid/server/queue/FileQueueBackingStore.java       | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

(limited to 'java')

diff --git a/java/broker/src/main/java/org/apache/qpid/server/queue/FileQueueBackingStore.java b/java/broker/src/main/java/org/apache/qpid/server/queue/FileQueueBackingStore.java
index 4e3b2298d1..bce06fad14 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/queue/FileQueueBackingStore.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/queue/FileQueueBackingStore.java
@@ -245,14 +245,18 @@ public class FileQueueBackingStore implements QueueBackingStore
         }
         finally
         {
-            try
+            // In a FileNotFound situation writer will be null.
+            if (writer != null)
             {
-                writer.flush();
-                writer.close();
-            }
-            catch (IOException e)
-            {
-                error = e;
+                try
+                {
+                    writer.flush();
+                    writer.close();
+                }
+                catch (IOException e)
+                {
+                    error = e;
+                }
             }
         }
 
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