[jboss-user] [JBoss Web Services] - Re: Metro in JBoss 7 HowTo

Alessio Soldano do-not-reply at jboss.com
Mon Sep 3 12:01:24 EDT 2012

Alessio Soldano [https://community.jboss.org/people/asoldano] created the discussion

"Re: Metro in JBoss 7 HowTo"

To view the discussion, visit: https://community.jboss.org/message/757622#757622

Hi Mike,
I'll comment later on the classpath / client topic.
> Mike P wrote:
> Lastly, it's interesting that, possibly, as is, right now, Metro can not do WS-Trust with a CXF server. Unless that tagged on /mex url becomes automagically available.
> My thinking on that one, is that *if* the wsdl advertises the (extra?) metadata, that CXF then goes ahead and makes avaibable this mystery /mex service (that apparently does GETs and POSTs and whatnots), and that Metro "ought to" not make assumptions about mex being available when the wsdl doesn't list it (which might be considered a bug in Metro - which should be reported - or at least feedback ought to be requested on this issue - I can post a report about my findings, since I've already spend time banging my head into this...).
> *Maybe* there could a flag somewhere that makes CXF make available mex even though wsdl doesn't advertise it - just so that clients like Metro that require this (wrongfully), don't end up failing.
> *Or*, have CXF add mex always. I don't know when mex should be added - perhaps only  with this WS-Trust stuff? Or perhaps for other ws security features. Not needed for simple unsecure ws calls I would think (will have to verify that).
I did a bit of additional investigation on this topic today. Basically, Apache CXF is able to reply to WS-MEX requests sent to "/mex". The problem is with properly configuring the STS endpoint on JBoss AS.
You need to have the JBoss Web layer deal with HTTP messages to the /mex subpath, for instance by having a web.xml descriptor as follows (please note the wildcard in the url pattern):

<web-app ...>

Besides that, I unfortunately found a bug in the jbossws-cxf SubjectCreatingInterceptor which basically block any WS-MEX call, see  https://issues.jboss.org/browse/JBWS-3543 https://issues.jboss.org/browse/JBWS-3543 . It's fixed on jbossws-cxf trunk and will be in next release.

This said, there're many complaints on the net regarding Metro default behaviour wrt WS-MetadataExchange and STS endpoints; btw Glen Mazza also created a WSIT / Metro improvement ticket at  http://java.net/jira/browse/WSIT-1586 http://java.net/jira/browse/WSIT-1586 long time ago (for a better configurability of Metro), but that's not been worked yet.

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