JVM_Bind on simple target connection try

[romanman]

Hey guys ,

Thanks for glorious lib,
some small problem I am trying to establish simple
hole punching, for that I have started mediator
on some server and trying to connect to it by
that code:

        UnsecureTargetSideConnectionEstablishment utsce = new UnsecureTargetSideConnectionEstablishment();
        utsce.establishConnection("11", DefaultConnectionConfiguration.getInstance());

I see that the connection is touching the mediator for sure because
I get there output like that:

DEBUG [pool-1-thread-1] 2014-09-24 15:14:21,292 (HandleMessageTask.java:82) - Got message from Socket[addr=/85.178.50.229,port=64861,localport=30303]
DEBUG [pool-1-thread-1] 2014-09-24 15:14:21,295 (DefaultRegisterHandling.java:70) - User 11 added or updated

but on the client side I am getting this:

ERROR [main] 2014-09-24 17:13:16,192 (DeterminingTcpNatMapping.java:134) - Exception eccured while executing test
java.net.BindException: Address already in use: JVM_Bind
    at java.net.DualStackPlainSocketImpl.bind0(Native Method)
    at java.net.DualStackPlainSocketImpl.socketBind(DualStackPlainSocketImpl.java:106)
    at java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:376)
    at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:190)
    at java.net.Socket.bind(Socket.java:631)
    at de.fhkn.in.uce.connectivitymanager.investigator.DeterminingTcpNatMapping.executeTestRun(DeterminingTcpNatMapping.java:127)
    at de.fhkn.in.uce.connectivitymanager.investigator.DeterminingTcpNatMapping.executeTestI(DeterminingTcpNatMapping.java:112)
    at de.fhkn.in.uce.connectivitymanager.investigator.DeterminingTcpNatMapping.executeTest(DeterminingTcpNatMapping.java:72)
    at de.fhkn.in.uce.connectivitymanager.investigator.InfrastructureInvestigatorImpl.investigateMappingBehavior(InfrastructureInvestigatorImpl.java:51)
    at de.fhkn.in.uce.connectivitymanager.investigator.InfrastructureInvestigatorImpl.investigateOwnNat(InfrastructureInvestigatorImpl.java:41)
    at de.fhkn.in.uce.connectivitymanager.manager.target.UnsecureTargetSideConnectionEstablishment.register(UnsecureTargetSideConnectionEstablishment.java:82)
    at de.fhkn.in.uce.connectivitymanager.manager.target.UnsecureTargetSideConnectionEstablishment.establishConnection(UnsecureTargetSideConnectionEstablishment.java:63)
    at de.fhkn.in.uce.connectivitymanager.demo.chat.Main.main(Main.java:32)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:606)
    at com.intellij.rt.execution.application.AppMain.main(AppMain.java:134)

any idea why does it happens ?

@72Zn
@crusherd

Thanks in advance
Roman

[crusherd]

Hi Roman,

You are trying to connect an IP and port which is already in use. Please check if any other application is using the given IP and port. Are you executing the application as a Unit test? Do you close the socket(s) when quitting?

Best regrads,
Robert

[romanman]

not really it was just a straight forward scenario

[crusherd]

Did you check if there is another application running on the same IP and port because your error is showing this.

[romanman]

yeah I did, and also checked the other ports ,
it's an internal issue but I can't tell any more
info. I can try some if you will ask me.

[crusherd]

Did you try it with an UnsecureSourceSideConnectionEstablishment instead of UnsecureTargetSideConnectionEstablishment?
Did you try it like the ConnectivityManager demo to create a UCESocket and then connect? (https://github.com/htwg/UCE#test-the-connectivity-manager-demo)
Sorry, I'm no longer familar with the source code, so it could take a bit longer for a solution. Maybe could @72Zn help.

[superduong]

Hi Romanman
I have same problem as you. How to fix that ?
Help me !