Stoyan Tsonev created AXIS2-5303:
------------------------------------
Summary: 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
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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