DO NOT REPLY [Bug 26875] New: - NullPointerExceptions for updated classes from JBoss classloader.

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=26875

NullPointerExceptions for updated classes from JBoss classloader.

           Summary: NullPointerExceptions for updated classes from JBoss
                    classloader.
           Product: Axis
           Version: 1.2 Alpha
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: Major
          Priority: Other
         Component: Basic Architecture
        AssignedTo: axis-dev@ws.apache.org
        ReportedBy: mhawthorne@alumni.pitt.edu


JBoss is infamous for its UnifiedClassLoader, which doesn't seem to behave like
a typical J2EE classloader.  I've tried numerous JBoss configurations, but none
of them seem to do everything that I need.

I've checked their bug reports and they seem to think it's a problem with "the
Apache guys" caching classes.

I am deploying session beans in an  ear file, and using the java:EJB provider to
invoke them as web services.  This works great on a fresh deployment with a
newly started server, but when I redeploy, I frequently have problems with
NullPointerExceptions.

Does anyone have a thought or suggestion about this problem?  I would be willing
to help out with testing in JBoss.

Thanks for any help or info that you can provide!



java.lang.NullPointerException
    at
org.jboss.mx.loading.UnifiedClassLoader.findResources(UnifiedClassLoader.java:374)
    at java.lang.ClassLoader.getResources(ClassLoader.java:825)
    at java.lang.ClassLoader.getResources(ClassLoader.java:821)
    at java.lang.ClassLoader.getResources(ClassLoader.java:821)
    at org.apache.commons.discovery.jdk.JDK12Hooks.getResources(JDK12Hooks.java:150)
    at
org.apache.commons.discovery.resource.DiscoverResources$1.getNextResources(DiscoverResources.java:153)
    at
org.apache.commons.discovery.resource.DiscoverResources$1.getNextResource(DiscoverResources.java:129)
    at
org.apache.commons.discovery.resource.DiscoverResources$1.hasNext(DiscoverResources.java:116)
    at
org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassNames(DiscoverNamesInFile.java:186)
    at
org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.getNextClassName(DiscoverNamesInFile.java:170)
    at
org.apache.commons.discovery.resource.names.DiscoverNamesInFile$1.hasNext(DiscoverNamesInFile.java:157)
    at
org.apache.commons.discovery.resource.names.NameDiscoverers$1.getNextIterator(NameDiscoverers.java:143)
    at
org.apache.commons.discovery.resource.names.NameDiscoverers$1.hasNext(NameDiscoverers.java:126)
    at
org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1.getNextResource(ResourceClassDiscoverImpl.java:159)
    at
org.apache.commons.discovery.resource.classes.ResourceClassDiscoverImpl$1.hasNext(ResourceClassDiscoverImpl.java:147)
    at
org.apache.axis.configuration.EngineConfigurationFactoryFinder$1.run(EngineConfigurationFactoryFinder.java:159)
    at java.security.AccessController.doPrivileged(Native Method)
    at
org.apache.axis.configuration.EngineConfigurationFactoryFinder.newFactory(EngineConfigurationFactoryFinder.java:152)
    at
org.apache.axis.transport.http.AxisServletBase.getEngineEnvironment(AxisServletBase.java:285)
    at
org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:208)
    at
org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:187)
    at org.apache.axis.transport.http.AxisServlet.doPost(AxisServlet.java:785)
    at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)