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From "Sagara Gunathunga (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (AXIS2-5303) In case of multiple Axis2 instances, some of them fail during parallel startup, as result of NPE in TempFileManager
Date Tue, 01 May 2012 09:30:51 GMT

    [ https://issues.apache.org/jira/browse/AXIS2-5303?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13265722#comment-13265722
] 

Sagara Gunathunga  commented on AXIS2-5303:
-------------------------------------------

Possible NullPointerException fixed in 1332587. It's hard to write a test to very this issue,
please test either 1.7.0-SNAPSHOT or 1.6.3-SNAPSHOT within your setup and let us know your
outcome. 
                
> In case of multiple Axis2 instances, some of them fail during parallel startup, as result
of NPE in TempFileManager
> -------------------------------------------------------------------------------------------------------------------
>
>                 Key: AXIS2-5303
>                 URL: https://issues.apache.org/jira/browse/AXIS2-5303
>             Project: Axis2
>          Issue Type: Bug
>          Components: kernel
>    Affects Versions: 1.6.0
>         Environment: AIX 6, WebSphere AS 7.0
>            Reporter: Stoyan Tsonev
>            Assignee: Sagara Gunathunga 
>
> We are running WebSphere cluster with multiple instances of Axis2.
> During parallel start-up all of them (together) are "trying" to do temp folders clean-up
in the static initializer of TempFileManager
> But some instances are "faster", some are "slower" and as result of this time-race "slow"
instances can end-up in non-functional state (see the log bellow).
> Solution: A simple check in method  "private static void recursiveDelete(File rootDir)"
after "File[] files = rootDir.listFiles();"
> if (files != null) { ...}
> should fix the issue.
> --- attached log ------
> java.lang.ExceptionInInitializerError
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:222)
> 	at org.apache.axis2.deployment.util.Utils.createTempFile(Utils.java:227)
> 	at org.apache.axis2.deployment.util.Utils.getURLsForAllJars(Utils.java:168)
> 	at org.apache.axis2.deployment.util.Utils.createClassLoader(Utils.java:852)
> 	at org.apache.axis2.deployment.repository.util.DeploymentFileData.setClassLoader(DeploymentFileData.java:115)
> 	at org.apache.axis2.deployment.ModuleDeployer.deploy(ModuleDeployer.java:70)
> 	at org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:136)
> 	at org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:813)
> 	at org.apache.axis2.deployment.RepositoryListener.init(RepositoryListener.java:264)
> 	at org.apache.axis2.deployment.RepositoryListener.init2(RepositoryListener.java:69)
> 	at org.apache.axis2.deployment.RepositoryListener.<init>(RepositoryListener.java:64)
> 	at org.apache.axis2.deployment.DeploymentEngine.loadRepository(DeploymentEngine.java:158)
> 	at org.apache.axis2.deployment.WarBasedAxisConfigurator.getAxisConfiguration(WarBasedAxisConfigurator.java:228)
> 	at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:64)
> 	at org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:584)
> 	at org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:454)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:358)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.init(ServletWrapperImpl.java:169)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1809)
> 	at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:98)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:1038)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:959)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:638)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinally(WebApp.java:436)
> 	at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:304)
> 	at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:100)
> 	at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:166)
> 	at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:731)
> 	at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:616)
> 	at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:376)
> 	at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:668)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1127)
> 	at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1319)
> 	at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:610)
> 	at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:944)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:740)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2051)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:385)
> 	at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:328)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$300(CompositionUnitMgrImpl.java:113)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:895)
> 	at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:349)
> 	at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
> Caused by: java.lang.NullPointerException
> 	at org.apache.axis2.deployment.util.TempFileManager.recursiveDelete(TempFileManager.java:138)
> 	at org.apache.axis2.deployment.util.TempFileManager.<clinit>(TempFileManager.java:203)
> 	at java.lang.J9VMInternals.initializeImpl(Native Method)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> 	... 43 more
> ....
> The addressing-1.6.0.mar module, which is not valid, caused org.apache.axis2.deployment.util.TempFileManager
(initialization failure)
> java.lang.NoClassDefFoundError: org.apache.axis2.deployment.util.TempFileManager (initialization
failure)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:140)
> 	at org.apache.axis2.deployment.util.Utils.createTempFile(Utils.java:227)
> 	at org.apache.axis2.deployment.util.Utils.getURLsForAllJars(Utils.java:168)
> 	at org.apache.axis2.deployment.util.Utils.createClassLoader(Utils.java:852)
> 	at org.apache.axis2.deployment.repository.util.DeploymentFileData.setClassLoader(DeploymentFileData.java:115)
> 	at org.apache.axis2.deployment.ModuleDeployer.deploy(ModuleDeployer.java:70)
> 	at org.apache.axis2.deployment.repository.util.DeploymentFileData.deploy(DeploymentFileData.java:136)
> 	at org.apache.axis2.deployment.DeploymentEngine.doDeploy(DeploymentEngine.java:813)
> 	at org.apache.axis2.deployment.RepositoryListener.init(RepositoryListener.java:264)
> 	at org.apache.axis2.deployment.RepositoryListener.init2(RepositoryListener.java:69)
> 	at org.apache.axis2.deployment.RepositoryListener.<init>(RepositoryListener.java:64)
> 	at org.apache.axis2.deployment.DeploymentEngine.loadRepository(DeploymentEngine.java:158)
> 	at org.apache.axis2.deployment.WarBasedAxisConfigurator.getAxisConfiguration(WarBasedAxisConfigurator.java:228)
> 	at org.apache.axis2.context.ConfigurationContextFactory.createConfigurationContext(ConfigurationContextFactory.java:64)
> 	at org.apache.axis2.transport.http.AxisServlet.initConfigContext(AxisServlet.java:584)
> 	at org.apache.axis2.transport.http.AxisServlet.init(AxisServlet.java:454)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapper.init(ServletWrapper.java:358)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapperImpl.init(ServletWrapperImpl.java:169)
> 	at com.ibm.ws.webcontainer.servlet.ServletWrapper.initialize(ServletWrapper.java:1809)
> 	at com.ibm.wsspi.webcontainer.extension.WebExtensionProcessor.createServletWrapper(WebExtensionProcessor.java:98)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:1038)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.getServletWrapper(WebApp.java:959)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.initializeTargetMappings(WebApp.java:638)
> 	at com.ibm.ws.webcontainer.webapp.WebApp.commonInitializationFinally(WebApp.java:436)
> 	at com.ibm.ws.webcontainer.webapp.WebAppImpl.initialize(WebAppImpl.java:304)
> 	at com.ibm.ws.webcontainer.webapp.WebGroupImpl.addWebApplication(WebGroupImpl.java:100)
> 	at com.ibm.ws.webcontainer.VirtualHostImpl.addWebApplication(VirtualHostImpl.java:166)
> 	at com.ibm.ws.webcontainer.WSWebContainer.addWebApp(WSWebContainer.java:731)
> 	at com.ibm.ws.webcontainer.WSWebContainer.addWebApplication(WSWebContainer.java:616)
> 	at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:376)
> 	at com.ibm.ws.webcontainer.component.WebContainerImpl.start(WebContainerImpl.java:668)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:1127)
> 	at com.ibm.ws.runtime.component.DeployedApplicationImpl.fireDeployedObjectStart(DeployedApplicationImpl.java:1319)
> 	at com.ibm.ws.runtime.component.DeployedModuleImpl.start(DeployedModuleImpl.java:610)
> 	at com.ibm.ws.runtime.component.DeployedApplicationImpl.start(DeployedApplicationImpl.java:944)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.startApplication(ApplicationMgrImpl.java:740)
> 	at com.ibm.ws.runtime.component.ApplicationMgrImpl.start(ApplicationMgrImpl.java:2051)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:385)
> 	at com.ibm.ws.runtime.component.CompositionUnitImpl.start(CompositionUnitImpl.java:123)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.start(CompositionUnitMgrImpl.java:328)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl.access$300(CompositionUnitMgrImpl.java:113)
> 	at com.ibm.ws.runtime.component.CompositionUnitMgrImpl$CUInitializer.run(CompositionUnitMgrImpl.java:895)
> 	at com.ibm.wsspi.runtime.component.WsComponentImpl$_AsynchInitializer.run(WsComponentImpl.java:349)
> 	at com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1604)
> Caused by: java.lang.NullPointerException
> 	at org.apache.axis2.deployment.util.TempFileManager.recursiveDelete(TempFileManager.java:138)
> 	at org.apache.axis2.deployment.util.TempFileManager.<clinit>(TempFileManager.java:203)
> 	at java.lang.J9VMInternals.initializeImpl(Native Method)
> 	at java.lang.J9VMInternals.initialize(J9VMInternals.java:200)
> 	... 43 more

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