java/net/ipv6tests/TcpTest.java fails intermittently

----------System.out:(2/20)----------
Test1: OK
Test1: OK
----------System.err:(13/675)----------
java.lang.RuntimeException: connect to IPv6 address should be refused
at TcpTest.test2(TcpTest.java:129)
at TcpTest.main(TcpTest.java:65)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:502)
at com.sun.javatest.regtest.agent.MainActionHelper$SameVMRunnable.run(MainActionHelper.java:218)
at java.lang.Thread.run(Thread.java:745)

JavaTest Message: Test threw exception: java.lang.RuntimeException
JavaTest Message: shutting down test

result: Failed. Execution failed: `main' threw exception: java.lang.RuntimeException: connect to IPv6 address should be refused