You are viewing a plain text version of this content. The canonical link for it is here.
Posted to users@tomcat.apache.org by Hideaki HIBINO <hi...@csg.is.titech.ac.jp> on 2005/04/26 09:56:03 UTC
I can not replace a classloader using Loader tag.
Hello,
I am trying to replace the default classloader of Tomcat to a
classloader that I customized. I red the manual for customizing
it (server configuration on Jakarta tomcat site) and wrote the
following configuration in context configuration file.
<!-- ${CATALINA_HOME}/conf/Catalina/localhost/myapp.xml -->
<Context path="/myapp" docBase="${catalina.home}/webapps/myapp"
debug="1" privileged="true">
<Loader className="org.apache.catalina.loader.WebappLoader" />
</Context>
But, I cannot change into customized classloader, and I am
getting the following error now.
Whats wrong with the configuration?
Could somebody help me, please?
....
<!-- ${CATALINA_HOME}/logs/localhost_log.2005-04-26.txt -->
2005-04-26 16:52:18
StandardContext[/balancer]org.apache.webapp.balancer.BalancerFilter:
init(): ruleChain: [org.apache.webapp.balancer.RuleChain:
[org.apache.webapp.balancer.rules.URLStringMatchRule: Target string:
News / Redirect URL: http://www.cnn.com],
[org.apache.webapp.balancer.rules.RequestParameterRule: Target param
name: paramName / Target param value: paramValue / Redirect URL:
http://www.yahoo.com],
[org.apache.webapp.balancer.rules.AcceptEverythingRule: Redirect URL:
http://jakarta.apache.org]]
2005-04-26 16:52:18 StandardContext[/myapp]Marking servlet default as
unavailable
2005-04-26 16:52:18 StandardContext[/myapp]Error loading WebappClassLoader
delegate: false
repositories:
/WEB-INF/classes/
----------> Parent Classloader:
StandardClassLoader
delegate: true
repositories:
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/shared/classes/
----------> Parent Classloader:
StandardClassLoader
delegate: true
repositories:
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/classes/
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/endorsed/xercesImpl.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/endorsed/xmlParserAPIs.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/ant.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/commons-collections.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/commons-dbcp-1.1.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/commons-el.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/commons-pool-1.1.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/jasper-compiler.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/jasper-runtime.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/jsp-api.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/naming-common.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/naming-factory.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/naming-java.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/naming-resources.jar
file:/workA/csg/hibino/tomcat/jakarta-tomcat-5.0.25-new/common/lib/servlet-api.jar
----------> Parent Classloader:
sun.misc.Launcher$AppClassLoader@209f4e
org.apache.catalina.servlets.DefaultServlet
java.lang.ClassNotFoundException:
org.apache.catalina.servlets.DefaultServlet
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1340)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:954)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3991)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4335)
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)
at
org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:903)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)
at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
at org.apache.commons.digester.Rule.end(Rule.java:276)
at
org.apache.commons.digester.Digester.endElement(Digester.java:1058)
at
org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:76)
at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1567)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:488)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:482)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:964)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at
org.apache.catalina.core.StandardService.start(StandardService.java:476)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2298)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:284)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:422)
2005-04-26 16:52:18 StandardContext[/myapp]Servlet /myapp threw load()
exception
javax.servlet.ServletException: Wrapper cannot find servlet class
org.apache.catalina.servlets.DefaultServlet or a class it depends on
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:964)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3991)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4335)
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)
at
org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:903)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)
at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
at org.apache.commons.digester.Rule.end(Rule.java:276)
at
org.apache.commons.digester.Digester.endElement(Digester.java:1058)
at
org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:76)
at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1567)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:488)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:482)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:964)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at
org.apache.catalina.core.StandardService.start(StandardService.java:476)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2298)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:284)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:422)
----- Root Cause -----
java.lang.ClassNotFoundException:
org.apache.catalina.servlets.DefaultServlet
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1340)
at
org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1189)
at
org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:954)
at
org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:862)
at
org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:3991)
at
org.apache.catalina.core.StandardContext.start(StandardContext.java:4335)
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)
at
org.apache.catalina.core.StandardHostDeployer.addChild(StandardHostDeployer.java:903)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at
org.apache.commons.beanutils.MethodUtils.invokeMethod(MethodUtils.java:252)
at org.apache.commons.digester.SetNextRule.end(SetNextRule.java:256)
at org.apache.commons.digester.Rule.end(Rule.java:276)
at
org.apache.commons.digester.Digester.endElement(Digester.java:1058)
at
org.apache.catalina.util.CatalinaDigester.endElement(CatalinaDigester.java:76)
at
org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown
Source)
at
org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown
Source)
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)
at org.apache.commons.digester.Digester.parse(Digester.java:1567)
at
org.apache.catalina.core.StandardHostDeployer.install(StandardHostDeployer.java:488)
at
org.apache.catalina.core.StandardHost.install(StandardHost.java:863)
at
org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:482)
at
org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:427)
at org.apache.catalina.startup.HostConfig.start(HostConfig.java:964)
at
org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:349)
at
org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:119)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1091)
at
org.apache.catalina.core.StandardHost.start(StandardHost.java:789)
at
org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1083)
at
org.apache.catalina.core.StandardEngine.start(StandardEngine.java:478)
at
org.apache.catalina.core.StandardService.start(StandardService.java:476)
at
org.apache.catalina.core.StandardServer.start(StandardServer.java:2298)
at org.apache.catalina.startup.Catalina.start(Catalina.java:556)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:324)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:284)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:422)
2005-04-26 16:52:18 StandardContext[/jsp-examples]ContextListener:
contextInitialized()
2005-04-26 16:52:18 StandardContext[/jsp-examples]SessionListener:
contextInitialized()
2005-04-26 16:52:19 StandardContext[/servlets-examples]ContextListener:
contextInitialized()
2005-04-26 16:52:19 StandardContext[/servlets-examples]SessionListener:
contextInitialized()
---------------------------------------------------------------------
To unsubscribe, e-mail: tomcat-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: tomcat-user-help@jakarta.apache.org