QPID-1116: fixed a race condition in connection/session close, session close now waits for the session to be detached before returning, this guarantees we won't have any active sessions when the connection close is attempted

git-svn-id: https://svn.apache.org/repos/asf/incubator/qpid/trunk/qpid@663677 13f79535-47bb-0310-9956-ffa450edef68

2 files changed, 20 insertions, 4 deletions

diff --git a/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java b/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
index 5361613e1e..9470520937 100644
--- a/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
+++ b/java/common/src/main/java/org/apache/qpidity/transport/ChannelDelegate.java
@@ -42,9 +42,6 @@ class ChannelDelegate extends MethodDelegate<Channel>
     public @Override void sessionDetached(Channel channel, SessionDetached closed)
     {
         channel.getSession().closed();
-        // XXX: should we remove the channel from the connection? It
-        // could have an external reference to it. Maybe we need a
-        // weak hash map in connection.
     }
 
     public @Override void sessionDetach(Channel channel, SessionDetach dtc)
diff --git a/java/common/src/main/java/org/apache/qpidity/transport/Session.java b/java/common/src/main/java/org/apache/qpidity/transport/Session.java
index a7de66c1a7..c11ef46d36 100644
--- a/java/common/src/main/java/org/apache/qpidity/transport/Session.java
+++ b/java/common/src/main/java/org/apache/qpidity/transport/Session.java
@@ -459,7 +459,23 @@ public class Session extends Invoker
     {
         sessionRequestTimeout(0);
         sessionDetach(name);
-        // XXX: channel.close();
+        synchronized (commands)
+        {
+            long start = System.currentTimeMillis();
+            long elapsed = 0;
+            try
+            {
+                while (!closed.get() && elapsed < timeout)
+                {
+                    commands.wait(timeout - elapsed);
+                    elapsed = System.currentTimeMillis() - start;
+                }
+            }
+            catch (InterruptedException e)
+            {
+                throw new RuntimeException(e);
+            }
+        }
     }
 
     public void exception(Throwable t)
@@ -484,6 +500,9 @@ public class Session extends Invoker
                 }
             }
         }
+        channel.close();
+        channel.setSession(null);
+        channel = null;
     }
 
     public String toString()