Hi there, I've been using the VmPipeConnector for "unit" testing and have come up against a problem. The the AnonymousSocketAddresses that are handed out are all the very same instance. The code relies on each client-side socket being unique and providing a unique name via toString(). For an InetSocketAddress, the toString() returns ip-address/host and port.

I have a small patch for your consideration. Let me know if it's the wrong format etc. I haven't been able to run this up against the unit tests for mina-core as mvn isn't working for me. mvn doesn't seem to be able to find the jar plugin (org.apache.maven.plugins:maven-jar-plugin:pom:2.1-SNAPSHOT) so please be aware of that. If anyone know how to get around that problem, I'd love to hear about it!

I did write a quick shell script to compile and jar mina-core in order to test against my own unit tests and found that it fixes my problem.

Cheers,
Steve.

Index: src/main/java/org/apache/mina/transport/vmpipe/VmPipeConnector.java
===================================================================
--- src/main/java/org/apache/mina/transport/vmpipe/VmPipeConnector.java        (revision 428432)
+++ src/main/java/org/apache/mina/transport/vmpipe/VmPipeConnector.java        (working copy)
@@ -85,7 +85,7 @@
                 new VmPipeSessionImpl(
                         this,
                         new Object(), // lock
-                        AnonymousSocketAddress.INSTANCE,
+                        new AnonymousSocketAddress(),
                         handler,
                         config.getFilterChainBuilder(),
                         config.getThreadModel(),
Index: src/main/java/org/apache/mina/util/AnonymousSocketAddress.java
===================================================================
--- src/main/java/org/apache/mina/util/AnonymousSocketAddress.java        (revision 428432)
+++ src/main/java/org/apache/mina/util/AnonymousSocketAddress.java        (working copy)
@@ -30,27 +30,21 @@
 {
     private static final long serialVersionUID = 3978421416766944048L;

-    public static final AnonymousSocketAddress INSTANCE = new AnonymousSocketAddress();
-
     /**
      * Creates a new instance with the specifid port number.
      */
-    private AnonymousSocketAddress()
+    public AnonymousSocketAddress()
     {
     }

     public int hashCode()
     {
-        return 1432482932;
+        return super.hashCode();
     }

     public boolean equals( Object o )
     {
-        if( o == null )
-            return false;
-        if( this == o )
-            return true;
-        return o instanceof AnonymousSocketAddress;
+        return super.equals(o);
     }

     public int compareTo( Object o )
@@ -58,8 +52,7 @@
         return this.hashCode() - ( ( AnonymousSocketAddress ) o ).hashCode();
     }

-    public String toString()
-    {
-        return "anonymous";
+    public String toString() {
+        return super.toString();
     }
 }


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