A CU found domain socket leak occurs in JDK5u28/6u30/7.

CONFIGURATION:
JDK : jdk7GA, jdk6u30, jdk5u31

% java -version
java version "1.5.0_31"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_31-b02)
Java HotSpot(TM) 64-Bit Server VM (build 1.5.0_31-b02, mixed mode)

%java -version
java version "1.6.0_30"
Java(TM) SE Runtime Environment (build 1.6.0_30-b12)
Java HotSpot(TM) 64-Bit Server VM (build 20.5-b03, mixed mode)

 % java -version
java version "1.7.0"
Java(TM) SE Runtime Environment (build 1.7.0-b147)
Java HotSpot(TM) 64-Bit Server VM (build 21.0-b17, mixed mode)

OS :
Linux
Red Hat Enterprise Linux Server release 5.4 (Tikanga)
Linux XXXXXX 2.6.18-164.11.1.el5 #1 SMP Wed Jan 6 13:26:04 EST 2010 x86_64 x86_64 x86_64 GNU/Linux


REPRODUCE:
1. Compile the attached e.java and execute "java e"
2. Invoke "lsof -U -a -p [PID]"
 If you can see several UNIX domain Sockets are created, that shows the problem is reproduced.

ex.
% lsof -U -a -p 3855
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
java 3855 tbaba 4u unix 0xffff810010ccf940 61967223 socket
java 3855 tbaba 17u unix 0xffff810010cce600 61967239 socket

FREQUENCY:
It depends on enviromnment. In some machine, it will take 5 - 10 minutes to reproduce this, in some machines, it needs several hours to reproduce.