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Bug in WLS6.1 SP4 MBeanProxy.getAttribute()

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Juerg Staub

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Apr 22, 2003, 6:50:31 AM4/22/03
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Hi there,

I have a strange problem with WLS6.1 SP4 on WindowsNT. I have an ear
that contains some EJB jars and a war. I deploy this ear and the
server is working fine. Now I have another war that contains a startup
servlet that calls some MBeans for getting info about
JDBCConnectionPools. When I just deploy the second war in the running
container on its own -> everything is still fine.

Now I stop the server and rebuild the ear, so that it contains the EJB
jars and both wars. When I start the server now, it crashes with the
following stack trace:


java.lang.NullPointerException
at weblogic.management.internal.MBeanProxy.getAttribute(MBeanProxy.java:253)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:187)
at $Proxy61.getWebModules(Unknown Source)
at weblogic.j2ee.Component.getModuleMBean(Component.java:622)
at weblogic.j2ee.Component.getAltDDFile(Component.java:586)
at weblogic.servlet.internal.WebAppServletContext.<init>(WebAppServletContext.java:873)
at weblogic.servlet.internal.HttpServer.loadWebApp(HttpServer.java:503)
at weblogic.j2ee.WebAppComponent.deploy(WebAppComponent.java:77)
at weblogic.j2ee.Application.addComponent(Application.java:174)
at weblogic.j2ee.J2EEService.addDeployment(J2EEService.java:117)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:364)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:150)
at weblogic.management.mbeans.custom.WebServer.addWebDeployment(WebServer.java:76)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy31.addWebDeployment(Unknown Source)
at weblogic.management.configuration.WebServerMBean_CachingStub.addWebDeployment(WebServerMBean_CachingStub.java:1256)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:350)
at weblogic.management.mbeans.custom.DeploymentTarget.addDeployment(DeploymentTarget.java:150)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.ConfigurationMBeanImpl.updateConfigMBeans(ConfigurationMBeanImpl.java:507)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:376)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.DynamicMBeanImpl.addDeployment(DynamicMBeanImpl.java:997)
at weblogic.management.internal.DynamicMBeanImpl.addDeployment(DynamicMBeanImpl.java:984)
at weblogic.management.internal.DynamicMBeanImpl.add(DynamicMBeanImpl.java:969)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:648)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy16.addTarget(Unknown Source)
at weblogic.management.mbeans.custom.ApplicationManager.autoDeploy(ApplicationManager.java:930)
at weblogic.management.mbeans.custom.ApplicationManager.addApplication(ApplicationManager.java:1039)
at weblogic.management.mbeans.custom.ApplicationManager.addApplication(ApplicationManager.java:954)
at weblogic.management.mbeans.custom.ApplicationManager.poll(ApplicationManager.java:851)
at weblogic.management.mbeans.custom.ApplicationManager.poll(ApplicationManager.java:781)
at weblogic.management.mbeans.custom.ApplicationManager.update(ApplicationManager.java:210)
at weblogic.management.mbeans.custom.ApplicationManager.startAdminManager(ApplicationManager.java:282)
at weblogic.management.mbeans.custom.ApplicationManager.start(ApplicationManager.java:156)
at java.lang.reflect.Method.invoke(Native Method)
at weblogic.management.internal.DynamicMBeanImpl.invokeLocally(DynamicMBeanImpl.java:636)
at weblogic.management.internal.DynamicMBeanImpl.invoke(DynamicMBeanImpl.java:621)
at weblogic.management.internal.ConfigurationMBeanImpl.invoke(ConfigurationMBeanImpl.java:374)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1557)
at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1525)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:468)
at weblogic.management.internal.MBeanProxy.invoke(MBeanProxy.java:209)
at $Proxy5.start(Unknown Source)
at weblogic.management.Admin.startApplicationManager(Admin.java:1313)
at weblogic.management.Admin.finish(Admin.java:649)
at weblogic.t3.srvr.T3Srvr.start(T3Srvr.java:542)
at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:213)
at weblogic.Server.main(Server.java:35)


Any ideas?

Juerg

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