java.net.PlainDatagramSocketImpl.join(Native Method), invalid argument

[Daniel Eischen]

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 at 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