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Posted to java-dev@axis.apache.org by "Patrick (JIRA)" <ax...@ws.apache.org> on 2006/07/25 06:31:15 UTC
[jira] Created: (AXIS-2533) NullPointerException when redeploy axis
context using Embedded Tomcat, first time deploy is working fine (other
context are fine)
NullPointerException when redeploy axis context using Embedded Tomcat, first time deploy is working fine (other context are fine)
---------------------------------------------------------------------------------------------------------------------------------
Key: AXIS-2533
URL: http://issues.apache.org/jira/browse/AXIS-2533
Project: Apache Axis
Issue Type: Bug
Components: Deployment / Registries
Affects Versions: 1.4
Environment: Tomcat 5.0.28 as Embedded host, Axis 1.4, JDK 1.4.2_11, Windows XP Pro SP 2
Reporter: Patrick
Priority: Blocker
We are using Tomcat 5.0.28 as Embedded host, then deploying /axis context to handle web services.
When the application starts up initially, deploying /axis context works fine.
But we want to be able to make changes to the web services deployed under axis, so we need to be able to undeploy the /axis context in the embedded Tomcat, then redeploy the /axis context again, which at this point the exception occurs (stack trace below). I think - correct me if I'm wrong - it's something to do between axis and commons-discovery caching the class loader (even though it is a new context - hence using new class loader)? I have looked at the issue database, while there are something along the lines of redeploy problem, I found none with similar exception (stack trace), hence I'm posting this.
StandardContext[/axis]Servlet /axis threw load() exception
javax.servlet.ServletException: Servlet.init() for servlet AdminServlet threw exception
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1071)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
...
----- Root Cause -----
java.lang.NullPointerException
at org.apache.catalina.loader.WebappClassLoader.findResources(WebappClassLoader.java:956)
at java.lang.ClassLoader.getResources(ClassLoader.java:851)
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:120)
at java.security.AccessController.doPrivileged(Native Method)
at org.apache.axis.configuration.EngineConfigurationFactoryFinder.newFactory(EngineConfigurationFactoryFinder.java:113)
at org.apache.axis.transport.http.AxisServletBase.getEngineEnvironment(AxisServletBase.java:273)
at org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:172)
at org.apache.axis.transport.http.AxisServletBase.getOption(AxisServletBase.java:396)
at org.apache.axis.transport.http.AxisServletBase.init(AxisServletBase.java:112)
at javax.servlet.GenericServlet.init(GenericServlet.java:261)
at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029)
at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
...
Prior to Axis 1.4, we used Axis 1.1 which works fine (undeploy then redeploy). I have tried Axis 1.2.1 which have the same problem as Axis 1.4.
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[jira] Commented: (AXIS-2533) NullPointerException when redeploy
axis context using Embedded Tomcat, first time deploy is working fine
(other context are fine)
Posted by "Curtis Porter (JIRA)" <ax...@ws.apache.org>.
[ http://issues.apache.org/jira/browse/AXIS-2533?page=comments#action_12434498 ]
Curtis Porter commented on AXIS-2533:
-------------------------------------
Copying axis.jar into WEB-INF/lib is a workaround, but it bloats the size of the webapp's .war file.
> NullPointerException when redeploy axis context using Embedded Tomcat, first time deploy is working fine (other context are fine)
> ---------------------------------------------------------------------------------------------------------------------------------
>
> Key: AXIS-2533
> URL: http://issues.apache.org/jira/browse/AXIS-2533
> Project: Apache Axis
> Issue Type: Bug
> Components: Deployment / Registries
> Affects Versions: 1.4
> Environment: Tomcat 5.0.28 as Embedded host, Axis 1.4, JDK 1.4.2_11, Windows XP Pro SP 2
> Reporter: Patrick
> Priority: Blocker
>
> We are using Tomcat 5.0.28 as Embedded host, then deploying /axis context to handle web services.
> When the application starts up initially, deploying /axis context works fine.
> But we want to be able to make changes to the web services deployed under axis, so we need to be able to undeploy the /axis context in the embedded Tomcat, then redeploy the /axis context again, which at this point the exception occurs (stack trace below). I think - correct me if I'm wrong - it's something to do between axis and commons-discovery caching the class loader (even though it is a new context - hence using new class loader)? I have looked at the issue database, while there are something along the lines of redeploy problem, I found none with similar exception (stack trace), hence I'm posting this.
> StandardContext[/axis]Servlet /axis threw load() exception
> javax.servlet.ServletException: Servlet.init() for servlet AdminServlet threw exception
> at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1071)
> at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
> at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
> at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
> ...
> ----- Root Cause -----
> java.lang.NullPointerException
> at org.apache.catalina.loader.WebappClassLoader.findResources(WebappClassLoader.java:956)
> at java.lang.ClassLoader.getResources(ClassLoader.java:851)
> 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:120)
> at java.security.AccessController.doPrivileged(Native Method)
> at org.apache.axis.configuration.EngineConfigurationFactoryFinder.newFactory(EngineConfigurationFactoryFinder.java:113)
> at org.apache.axis.transport.http.AxisServletBase.getEngineEnvironment(AxisServletBase.java:273)
> at org.apache.axis.transport.http.AxisServletBase.getEngine(AxisServletBase.java:172)
> at org.apache.axis.transport.http.AxisServletBase.getOption(AxisServletBase.java:396)
> at org.apache.axis.transport.http.AxisServletBase.init(AxisServletBase.java:112)
> at javax.servlet.GenericServlet.init(GenericServlet.java:261)
> at org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:1029)
> at org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
> at org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:4013)
> at org.apache.catalina.core.StandardContext.start(StandardContext.java:4357)
> at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:823)
> at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:807)
> at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:595)
> ...
> Prior to Axis 1.4, we used Axis 1.1 which works fine (undeploy then redeploy). I have tried Axis 1.2.1 which have the same problem as Axis 1.4.
--
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