QPID-2757: Remove double checked locking

git-svn-id: https://svn.apache.org/repos/asf/qpid/trunk/qpid@979208 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 7 insertions, 14 deletions

diff --git a/java/broker/src/main/java/org/apache/qpid/server/transport/ThreadPoolFilter.java b/java/broker/src/main/java/org/apache/qpid/server/transport/ThreadPoolFilter.java
index bdd27f2d1c..db02a7bf76 100644
--- a/java/broker/src/main/java/org/apache/qpid/server/transport/ThreadPoolFilter.java
+++ b/java/broker/src/main/java/org/apache/qpid/server/transport/ThreadPoolFilter.java
@@ -280,30 +280,23 @@ public class ThreadPoolFilter extends IoFilterAdapter
 
     private SessionBuffer getSessionBuffer(IoSession session)
     {
-        final Map buffers = this.buffers;
-        SessionBuffer buf = (SessionBuffer) buffers.get(session);
-        if (buf == null)
+        synchronized (buffers)
         {
-            synchronized (buffers)
+            SessionBuffer buf = (SessionBuffer) buffers.get(session);
+            if (buf == null)
             {
-                buf = (SessionBuffer) buffers.get(session);
-                if (buf == null)
-                {
-                    buf = new SessionBuffer(session);
-                    buffers.put(session, buf);
-                }
+                buf = new SessionBuffer(session);
+                buffers.put(session, buf);
             }
+            return buf;
         }
-        return buf;
     }
 
     private void removeSessionBuffer(SessionBuffer buf)
     {
-        final Map buffers = this.buffers;
-        final IoSession session = buf.session;
         synchronized (buffers)
         {
-            buffers.remove(session);
+            buffers.remove(buf.session);
         }
     }