Date: Sun, 23 Feb 2014 10:25:43 -0500 (EST) From: Daniel Eischen <deischen@freebsd.org> To: Dan Daley <dddaley@yahoo.com> Cc: Craig Rodrigues <rodrigc@FreeBSD.org>, freebsd-net@freebsd.org, jenkins-admin@freebsd.org, "freebsd-java@freebsd.org" <freebsd-java@freebsd.org> Subject: Re: java.net.PlainDatagramSocketImpl.join(Native Method), invalid argument Message-ID: <Pine.GSO.4.64.1402231021110.15984@sea.ntplx.net> In-Reply-To: <43F3B96E-0BC7-4BEA-BAAF-CD43E69B1152@yahoo.com> References: <CAG=rPVcbgJUy9vEOOC6uoExKgc-v6M8-itEjkYYaYSmwk_MTaQ@mail.gmail.com> <43F3B96E-0BC7-4BEA-BAAF-CD43E69B1152@yahoo.com>
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On Sun, 23 Feb 2014, Dan Daley wrote:
>
> I ran into this issue about a year and a half ago. If this is the
> same issue, it had something to do with the way an IPv4 address is
> bound to IPv6. I also ran into the issue on some older flavors of
> linux, though it seems that the issue didn't happen on newer flavors.
>
> Sorry, I don't remember more details now. But, maybe someone else can
> shed more light on the IPv4/IPv6 issue with UDP in Java.
Sorry, I missed this thread. Craig, did you try forcing
IPv4 by setting java.net.preferIPv4Stack=true? You can
do it on the run line with -Djava.net.preferIPv4Stack=true
or setting it in the code with System.setProperty
("java.net.preferIPv4Stack", "true").
I have to do this for our own applications that use
multicast. I think the JRE recognizes that the OS
has IPv6 enabled and tries to use that instead of
IPv4.
>
> On Feb 22, 2014, at 10:45 PM, Craig Rodrigues <rodrigc@FreeBSD.org> wrote:
>
>> Hi,
>>
>> I can reproduce the following problem pretty easily
>> on FreeBSD 9, 10, CURRENT.
>>
>> (1) Install the devel/jenkins port
>>
>> (2) Run:
>>
>> service jenkins onestart
>>
>> (3) In /var/log/jenkins.log, I see a traceback:
>>
>> WARNING: UDP handling problem
>> java.net.SocketException: Invalid argument
>> at java.net.PlainDatagramSocketImpl.join(Native Method)
>> at
>> java.net.AbstractPlainDatagramSocketImpl.join(AbstractPlainDatagramSocketImpl.java:168)
>> at java.net.MulticastSocket.joinGroup(MulticastSocket.java:300)
>> at hudson.UDPBroadcastThread.run(UDPBroadcastThread.java:76)
>> Feb 22, 2014 5:21:00 PM hudson.WebAppMain$3 run
>>
>>
>>
>> I reported this bug against Jenkins:
>>
>> https://issues.jenkins-ci.org/browse/JENKINS-21727
>>
>>
>> but now I suspect that this is a FreeBSD bug or
>> implementation with respect to multicast.
>>
>>
>> Can someone help me debug this and isolate the problem?
>> It's been a while since I've debugged Java code.
>>
>> Thanks.
>> --
>> Craig
--
DE
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