[jboss-dev] Hostname problem when starting JB AS TRUNK

[Jason T. Greene]

All we need to do is put the jmx-remoting jar in /lib/endorsed.

Tim Fox wrote:
> 
> 
> Ron Sigal wrote:
>> Sorry, I wasn't following this thread.  Mostly, I'm going to plead 
>> ignorance - I've never touched JBoss jmx-remoting.  However, Jason 
>> seems to be on the right track.  The line numbers in Tim's stack trace 
>> don't match the JBoss implementation of 
>> javax.management.remote.JMXServiceURL.
> Other possibilities could be to use an ip address rather than hostname, 
> or switch to a less restrictive implementation of the classes. I'm not 
> familiar enough with this area to know what is the best approach, but 
> the fact of the matter is that JBAS 4.x starts up fine with a hostname 
> with underscores and JBAS 5 doesn't.
> 
>>
>> -Ron
>>
>> Jason T. Greene wrote:
>>> OK, I just verified and this is explicitly disallowed in the JDK 
>>> version of JMXSerivceURL (IMO a bug). It is however allowed in URL.
>>>
>>> The JBoss implementation of JMXServiceURL does allow it, so the 
>>> problem is that it is not in endorsed libs.
>>>
>>> -Jason
>>>
>>> Jason T. Greene wrote:
>>>> No escaping should be needed. The JDK allows underscores in 
>>>> hostnames. In reality there is nothing wrong with them, they just 
>>>> aren't allowed in DNS.
>>>>
>>>> Tim Fox wrote:
>>>>>
>>>>>
>>>>> Dimitris Andreadis wrote:
>>>>>> Am I missing the point, or this is JDK code being executed 
>>>>>> (javax.management...). How escaping the hostname could help?
>>>>>
>>>>> AFAICT the string is just a JMX service name, it doesn't *have to* 
>>>>> contain the actual hostname AFAICT:
>>>>>
>>>>> String serviceURL = "service:jmx:rmi://" + bindAddress + 
>>>>> "/jndi/rmi://" + bindAddress + ":" + registryPort + jndiPath;
>>>>>
>>>>> So should be to escape it before passing it to the JDK code.
>>>>>
>>>>> Maybe someone from the remoting team should comment, since this is 
>>>>> remoting code...
>>>>>
>>>>>>
>>>>>> java.net.MalformedURLException: Bad URL path: 
>>>>>> _laptop/jndi/rmi://tims_laptop:1090/jmxconnector
>>>>>>         at 
>>>>>> javax.management.remote.JMXServiceURL.validate(JMXServiceURL.java:348) 
>>>>>>
>>>>>>         at 
>>>>>> javax.management.remote.JMXServiceURL.<init>(JMXServiceURL.java:208)
>>>>>>         at 
>>>>>> org.jboss.mx.remoting.service.JMXConnectorServerService.start(JMXConnectorServerService.java:106) 
>>>>>>
>>>>>>
>>>>>> This looks like a non-issue to me. Better change your hostname :)
>>>>>>
>>>>>> Tim Fox wrote:
>>>>>>> I'm not familiar with that code, but I'm assuming that whoever is 
>>>>>>> generating the URLs should be able to escape any occurences of 
>>>>>>> '_' pretty easily....
>>>>>>>
>>>>>>>
>>>>>>> Dimitris Andreadis wrote:
>>>>>>>> So, is this a JDK problem, or not?
>>>>>>>>
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>>>>>>>
>>>>>> _______________________________________________
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>>>>>
>>>>
>>>>
>>>
>>>
>>
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> 


-- 
Jason T. Greene
JBoss, a division of Red Hat