[jdom-interest] Problems with Jboss 3.2.1 and 3.2.2

[Sanjeev Verma]

Hi Johan:

I have not worked with JBoss extensively, but trying to add/replace libraries in the app server installation is never a good idea. What you can try is package your application such that the library jar files lie inside the archive. See this link for details on how to do this:

www.onjava.com/pub/a/onjava/2001/06/26/ejb.html

This article provides for a cleaner solution.

Hope this helps.

Best regards

Sanjeev


Johan Mörén wrote:

> Hi!
>
> Im trying use the Xpath feature of JDOM B9 in a SessionBean running on a JBOSS 3.2.2 server but Jboss is having troubles finding the saxpath library required at runtime.
>
> I have tried with both adding and/or replacing the jdom libraries in ${JBOSS_HOME}/lib and {JBOSS_HOME}/server/default/lib but i always end up with this exception when initilizing the SessionBean:
>
> <trace>
>
> 09:47:44,397 ERROR [LogInterceptor] Unexpected Error:
> java.lang.NoClassDefFoundError: org/saxpath/SAXPathException
>         at java.lang.Class.forName0(Native Method)
>         at java.lang.Class.forName(Class.java:140)
>         at org.jdom.xpath.XPath.newInstance(XPath.java:133)
>         at net.spray.se.pravda2.ejb.NewsItemServiceBean.setSessionContext(Unknown Source)
>         at net.spray.se.pravda2.ejb.NewsItemServiceSession.setSessionContext(Unknown Source)
>         at org.jboss.ejb.StatelessSessionEnterpriseContext.<init>(StatelessSessionEnterpriseContext.java:47)
>         at org.jboss.ejb.plugins.StatelessSessionInstancePool.create(StatelessSessionInstancePool.java:35)
>         at org.jboss.ejb.plugins.AbstractInstancePool.get(AbstractInstancePool.java:168)
>         at org.jboss.ejb.plugins.StatelessSessionInstanceInterceptor.invoke(StatelessSessionInstanceIntercepto
> r.java:58)
>         at org.jboss.ejb.plugins.AbstractTxInterceptor.invokeNext(AbstractTxInterceptor.java:84)
>         at org.jboss.ejb.plugins.TxInterceptorCMT.runWithTransactions(TxInterceptorCMT.java:267)
>         at org.jboss.ejb.plugins.TxInterceptorCMT.invoke(TxInterceptorCMT.java:128)
>         at org.jboss.ejb.plugins.SecurityInterceptor.invoke(SecurityInterceptor.java:118)
>         at org.jboss.ejb.plugins.LogInterceptor.invoke(LogInterceptor.java:191)
>         at org.jboss.ejb.plugins.ProxyFactoryFinderInterceptor.invoke(ProxyFactoryFinderInterceptor.java:122)
>         at org.jboss.ejb.StatelessSessionContainer.internalInvoke(StatelessSessionContainer.java:331)
>         at org.jboss.ejb.Container.invoke(Container.java:700)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:324)
>         at org.jboss.mx.capability.ReflectedMBeanDispatcher.invoke(ReflectedMBeanDispatcher.java:284)
>         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:546)
>         at org.jboss.invocation.jrmp.server.JRMPInvoker.invoke(JRMPInvoker.java:367)
>         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>         at java.lang.reflect.Method.invoke(Method.java:324)
>         at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:261)
>         at sun.rmi.transport.Transport$1.run(Transport.java:148)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at sun.rmi.transport.Transport.serviceCall(Transport.java:144)
>         at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460)
>         at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701)
>         at java.lang.Thread.run(Thread.java:536)
>
> </trace>
>
> This is the Xpath specific code that runns in the setSessionContext method. However i dont thing the code is the problem since i can get the code to compile and run outside Jboss.
>
> <code>
>                 try
>                 {
>                         log.debug("Creating XPath instances...");
>                         xpStartDate = XPath.newInstance("/sprayNewsItem/header/startDate");
>                         xpEndDate = XPath.newInstance("/sprayNewsItem/header/endDate");
>                         xpProvider = XPath.newInstance("/sprayNewsItem/header/provider");
>                         xpPhase = XPath.newInstance("/sprayNewsItem/header/phase");
>                         xpPriority = XPath.newInstance("/sprayNewsItem/header/priority");
>                         xpCategory = XPath.newInstance("/sprayNewsItem/header/category");
>                         xpSubCategory =
>                                 XPath.newInstance("/sprayNewsItem/header/subCategory");
>                         log.debug("Created XPath instances");
>                 }
>                 catch (Exception e)
>                 {
>                         log.error("Failed to create XPath instances" + e);
>                         throw new RemoteException("Failed to create XPath instances, " + e);
>                 }
> </code>
>
> Does anyone of you had similar troubles? And perhaps found a soloution and/or an explanation?
>
> Regards,
> Johan Mörén

>
>
>
>
> _____________________________________________________s_p_r_a_y__
>
> Johan Mörén | Systems developer
> Spray Network AB Box 5169 SE-102 44 Stockholm Sweden
> johan.moren at staff.spray.se | Phone: +46-(0)8-410 90 000
>
> http://www.spray.se - nu är det lättare att umgås

>
>
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>
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--
Best Regards

Sanjeev Verma
Sun ONE App Server Migration Consultant
Web Services, Tools and Migration Tools
Market Development Engineering


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