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From "Donald Woods (JIRA)" <j...@apache.org>
Subject [jira] Closed: (GERONIMO-3421) ClassFinder classloader problems cause deployer to hang
Date Fri, 24 Aug 2007 21:29:31 GMT

     [ https://issues.apache.org/jira/browse/GERONIMO-3421?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Donald Woods closed GERONIMO-3421.
----------------------------------

       Resolution: Fixed
    Fix Version/s: 2.1

Committed revision 569528 in 2.0.2-SNAPSHOT
Committed revision 569530 in 2.1-SNAPSHOT
Toby, thanks for the patch.

> ClassFinder classloader problems cause deployer to hang
> -------------------------------------------------------
>
>                 Key: GERONIMO-3421
>                 URL: https://issues.apache.org/jira/browse/GERONIMO-3421
>             Project: Geronimo
>          Issue Type: Bug
>      Security Level: public(Regular issues) 
>          Components: deployment
>    Affects Versions: 2.0.x
>         Environment: Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0_12-b04)
> CentOS release 5 (Final)
>            Reporter: toby cabot
>            Assignee: Donald Woods
>            Priority: Minor
>             Fix For: 2.0.x, 2.1
>
>         Attachments: deployer-message-patch.txt
>
>
> I build an ear file (containing a rar and a war) with a bug and tried to deploy it. 
The deployer printed this stack trace to the console and then hung:
> Exception in thread "Thread-6" java.lang.NoClassDefFoundError: org/jdom/JDOMException
>     at java.lang.Class.getDeclaredMethods0(Native Method)
>     at java.lang.Class.privateGetDeclaredMethods(Class.java:2395)
>     at java.lang.Class.getDeclaredMethods(Class.java:1763)
>     at org.apache.xbean.finder.ClassFinder.<init>(ClassFinder.java:162)
>     at org.apache.geronimo.web25.deployment.AbstractWebModuleBuilder.createWebAppClassFinder(AbstractWebModuleBuilder.java:796)
>     at org.apache.geronimo.web25.deployment.AbstractWebModuleBuilder.configureBasicWebModuleAttributes(AbstractWebModuleBuilder.java:813)
>     at org.apache.geronimo.jetty6.deployment.JettyModuleBuilder.addGBeans(JettyModuleBuilder.java:337)
>     at org.apache.geronimo.jetty6.deployment.JettyModuleBuilder$$FastClassByCGLIB$$1a00be84.invoke(<generated>)
>     at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
>     at org.apache.geronimo.gbean.runtime.FastMethodInvoker.invoke(FastMethodInvoker.java:38)
>     at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
>     at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:830)
>     at org.apache.geronimo.gbean.runtime.RawInvoker.invoke(RawInvoker.java:57)
>     at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke(RawOperationInvoker.java:35)
>     at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept(ProxyMethodInterceptor.java:96)
>     at org.apache.geronimo.j2ee.deployment.ModuleBuilder$$EnhancerByCGLIB$$35300f85.addGBeans(<generated>)
>     at org.apache.geronimo.j2ee.deployment.SwitchingModuleBuilder.addGBeans(SwitchingModuleBuilder.java:165)
>     at org.apache.geronimo.j2ee.deployment.SwitchingModuleBuilder$$FastClassByCGLIB$$d0c31844.invoke(<generated>)
>     at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
>     at org.apache.geronimo.gbean.runtime.FastMethodInvoker.invoke(FastMethodInvoker.java:38)
>     at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
>     at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:830)
>     at org.apache.geronimo.gbean.runtime.RawInvoker.invoke(RawInvoker.java:57)
>     at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke(RawOperationInvoker.java:35)
>     at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept(ProxyMethodInterceptor.java:96)
>     at org.apache.geronimo.j2ee.deployment.ModuleBuilder$$EnhancerByCGLIB$$35300f85.addGBeans(<generated>)
>     at org.apache.geronimo.j2ee.deployment.EARConfigBuilder.buildConfiguration(EARConfigBuilder.java:628)
>     at org.apache.geronimo.j2ee.deployment.EARConfigBuilder$$FastClassByCGLIB$$38e56ec6.invoke(<generated>)
>     at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
>     at org.apache.geronimo.gbean.runtime.FastMethodInvoker.invoke(FastMethodInvoker.java:38)
>     at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
>     at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:830)
>     at org.apache.geronimo.gbean.runtime.RawInvoker.invoke(RawInvoker.java:57)
>     at org.apache.geronimo.kernel.basic.RawOperationInvoker.invoke(RawOperationInvoker.java:35)
>     at org.apache.geronimo.kernel.basic.ProxyMethodInterceptor.intercept(ProxyMethodInterceptor.java:96)
>     at org.apache.geronimo.j2ee.deployment.CorbaGBeanNameSource$$EnhancerByCGLIB$$6c5d899a.buildConfiguration(<generated>)
>     at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:304)
>     at org.apache.geronimo.deployment.Deployer.deploy(Deployer.java:126)
>     at org.apache.geronimo.deployment.Deployer$$FastClassByCGLIB$$734a235d.invoke(<generated>)
>     at net.sf.cglib.reflect.FastMethod.invoke(FastMethod.java:53)
>     at org.apache.geronimo.gbean.runtime.FastMethodInvoker.invoke(FastMethodInvoker.java:38)
>     at org.apache.geronimo.gbean.runtime.GBeanOperation.invoke(GBeanOperation.java:124)
>     at org.apache.geronimo.gbean.runtime.GBeanInstance.invoke(GBeanInstance.java:865)
>     at org.apache.geronimo.kernel.basic.BasicKernel.invoke(BasicKernel.java:239)
>     at org.apache.geronimo.deployment.plugin.local.AbstractDeployCommand.doDeploy(AbstractDeployCommand.java:116)
>     at org.apache.geronimo.deployment.plugin.local.DistributeCommand.run(DistributeCommand.java:61)
>     at java.lang.Thread.run(Thread.java:595)
> The bug in my app was that the rar was missing a dependency jar that it needed, so this
was the cause of the NoClassDefFoundError, but the stack trace is a red herring - it makes
it look as if the problem is a bug in Geronimo rather than a bad user config.  The deployer
shouldn't hang in any case.
> The problem appears to be that ClassFinder can throw NoClassDefFoundError but the AbstractWebModuleBuilder
doesn't catch it.  I added a catch so the deployer now exits with an error and provides a
somewhat more helpful error message:
> Deployer operation failed: root.war classloader can't find org/jdom/JDOMException
> org.apache.geronimo.common.DeploymentException: root.war classloader can't find org/jdom/JDOMException
>         at org.apache.geronimo.web25.deployment.AbstractWebModuleBuilder.createWebAppClassFinder(AbstractWebModuleBuilder.java:799)
> etc...

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