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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