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Posted to java-dev@axis.apache.org by "Curtis Porter (JIRA)" <ax...@ws.apache.org> on 2006/09/13 20:01:22 UTC
[jira] Commented: (AXIS-2533) NullPointerException when redeploy
axis context using Embedded Tomcat, first time deploy is working fine
(other context are fine)
[ 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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