Test sun/management/jmxremote/startstop/JMXStartStopTest.java fails with "java.lang.Exception: Starting agent on port ... should report port in use".

Log:

**** Test six ****
Command line: [C:\\local\\aurora\\CommonData\\jdk\\bin\\java.exe -cp C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\sun\\management\\jmxremote\\startstop;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\lib\\testlibrary JMXStartStopDoSomething ]
[JMXStartStopDoSomething]:C:\\local\\aurora\\CommonData\\jdk\\bin\\java.exe -cp C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\sun\\management\\jmxremote\\startstop;C:\\local\\aurora\\sandbox\\results\\workDir\\classes\\lib\\testlibrary JMXStartStopDoSomething
[JMXStartStopDoSomething] main enter
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.start jmxremote.port=49708 jmxremote.authenticate=false jmxremote.ssl=false
[jcmd] 22880:
[jcmd] Command executed successfully
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.start jmxremote.port=49708 jmxremote.authenticate=false jmxremote.ssl=false
[jcmd] 22880:
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.start jmxremote.port=49709 jmxremote.authenticate=false jmxremote.ssl=false
[jcmd] 22880:
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.stop
[jcmd] 22880:
[jcmd] Command executed successfully
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.stop
[jcmd] 22880:
[jcmd] Command executed successfully
[jcmd]:C:\\local\\aurora\\CommonData\\jdk\\bin\\jcmd.exe JMXStartStopDoSomething ManagementAgent.start jmxremote.port=49715 jmxremote.rmi.port=49709 jmxremote.authenticate=false jmxremote.ssl=false
[match] 22880: => false
[jcmd] 22880:
[match] java.lang.RuntimeException: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 49715; nested exception is: java.net.BindException: Address already in use: NET_Bind => true
[JMXStartStopDoSomething] read: 0
[JMXStartStopDoSomething] main exit
(took 7493ms)

...

----------System.err:(35/2299)----------
[jcmd] java.lang.RuntimeException: Invalid agent state: Agent already started
[jcmd] java.lang.RuntimeException: Invalid agent state: Agent already started
[jcmd] java.lang.RuntimeException: Invalid agent state: Agent already started
[JMXStartStopDoSomething] Error: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 49715; nested exception is:
[JMXStartStopDoSomething] java.net.BindException: Address already in use: NET_Bind
[jcmd] java.lang.RuntimeException: Exception thrown by the agent : java.rmi.server.ExportException: Port already in use: 49715; nested exception is: java.net.BindException: Address already in use: NET_Bind
test_06 failed
java.lang.reflect.InvocationTargetException
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:498)
at JMXStartStopTest.main(JMXStartStopTest.java:295)
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:498)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.Exception: Starting agent on port 49715 should report port in use
at JMXStartStopTest.test_06(JMXStartStopTest.java:655)
... 11 more
java.lang.Error
at JMXStartStopTest.main(JMXStartStopTest.java:310)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javatest.regtest.MainWrapper$MainThread.run(MainWrapper.java:94)
at java.lang.Thread.run(Thread.java:745)

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