Re: [aspectwerkz-user] could not load class [java/lang/Object]

Hi

Can you try the same little code snip I posted (just change to query
for the class that causes the trouble).
Then turn on all verbose mode (-Daspectwerkz.transform.verbose=true,
see FAQ on the AW docs) to spot where that happens.
Sometime it is because we do want to match a pointcut in some place
that will actually be never called and for which there are missing
dependancies (ie some 3rd party jars not in the classpath / not
visible from the webapp etc). In such case you'll have to narrow down
the pointcut or add the dependency.
Alex

On 8/10/05, Marc Candle <[email protected]> wrote:
> Hi Alexandre,
> 
> I get a similar kind of error (see below) when I start my webapp under
> Tomcat 5.5.9 running AspectWerkz 2.0.
> 
> Any ideas?
> 
> Cheers
> 
> Mark
> 
> 
> AW::WARNING - could not load class
> [org/apache/commons/collections/EnumerationIterator] as a resource in loader
> [WebappClassLoader
>   delegate: false
>   repositories:
>     /WEB-INF/classes/
> ----------> Parent Classloader:
> org.apache.catalina.loader.StandardClassLoader@183e7de
> ]
> java.io.IOException: Class not found
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.readClass(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.<init>(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:304)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:331)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.createClassInfoFromSt
> ream(AsmClassInfo.java:790)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:273)
>         at
> org.codehaus.aspectwerkz.transform.inlining.weaver.ConstructorCallVisitor$Re
> placeNewInstructionCodeAdapter.visitTypeInsn(ConstructorCallVisitor.java:252
> )
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.CodeAdapter.visitTypeInsn(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.CodeAdapter.visitTypeInsn(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.accept(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.transform.inlining.InliningWeavingStrategy.transfor
> m(InliningWeavingStrategy.java:198)
>         at
> org.codehaus.aspectwerkz.transform.AspectWerkzPreProcessor._preProcess(Aspec
> tWerkzPreProcessor.java:173)
>         at
> org.codehaus.aspectwerkz.transform.AspectWerkzPreProcessor.preProcess(Aspect
> WerkzPreProcessor.java:148)
>         at
> org.codehaus.aspectwerkz.hook.impl.ClassPreProcessorHelper.defineClass0Pre(C
> lassPreProcessorHelper.java:107)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
>         at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
>         at
> org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLo
> ader.java:1629)
>         at
> org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.jav
> a:850)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1299)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1181)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
>         at
> org.apache.commons.betwixt.XMLIntrospector.addProperty(XMLIntrospector.java:
> 552)
>         at
> org.apache.commons.betwixt.XMLIntrospector.addProperties(XMLIntrospector.jav
> a:477)
>         at
> org.apache.commons.betwixt.XMLIntrospector.introspect(XMLIntrospector.java:2
> 76)
>         at
> org.apache.commons.betwixt.XMLIntrospector.introspect(XMLIntrospector.java:2
> 14)
>         at
> org.apache.commons.betwixt.io.BeanReader.registerBeanClass(BeanReader.java:1
> 35)
>         at
> org.mycode.utils.xml.betwixt.XmlReader.createBeanReader(XmlReader.java:73)
>         at org.mycode.utils.xml.betwixt.XmlReader.parse(XmlReader.java:56)
>         at
> org.mycode.bin.Mycode.createAuthorizationPipeline(Mycode.java:574)
>         at org.mycode.bin.Mycode.init(Mycode.java:548)
>         at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:10
> 91)
>         at
> org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
>         at
> org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:
> 3857)
>         at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4118)
>         at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:7
> 59)
>         at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
>         at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:589)
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:536
> )
>         at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:471)
>         at
> org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102)
>         at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
>         at
> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
> t.java:119)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020)
>         at
> org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012)
>         at
> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
>         at
> org.apache.catalina.core.StandardService.start(StandardService.java:450)
>         at
> org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
>         at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
>         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:271)
>         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
> java.io.IOException: Class not found
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.readClass(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.<init>(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:304)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:331)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.createClassInfoFromSt
> ream(AsmClassInfo.java:790)
>         at
> org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(AsmClass
> Info.java:273)
>         at
> org.codehaus.aspectwerkz.transform.inlining.weaver.ConstructorCallVisitor$Re
> placeNewInstructionCodeAdapter.visitTypeInsn(ConstructorCallVisitor.java:252
> )
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.CodeAdapter.visitTypeInsn(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.CodeAdapter.visitTypeInsn(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.accept(Unknown
> Source)
>         at
> org.codehaus.aspectwerkz.transform.inlining.InliningWeavingStrategy.transfor
> m(InliningWeavingStrategy.java:198)
>         at
> org.codehaus.aspectwerkz.transform.AspectWerkzPreProcessor._preProcess(Aspec
> tWerkzPreProcessor.java:173)
>         at
> org.codehaus.aspectwerkz.transform.AspectWerkzPreProcessor.preProcess(Aspect
> WerkzPreProcessor.java:148)
>         at
> org.codehaus.aspectwerkz.hook.impl.ClassPreProcessorHelper.defineClass0Pre(C
> lassPreProcessorHelper.java:107)
>         at java.lang.ClassLoader.defineClass(ClassLoader.java:539)
>         at
> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:123)
>         at
> org.apache.catalina.loader.WebappClassLoader.findClassInternal(WebappClassLo
> ader.java:1629)
>         at
> org.apache.catalina.loader.WebappClassLoader.findClass(WebappClassLoader.jav
> a:850)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1299)
>         at
> org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.jav
> a:1181)
>         at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302)
>         at
> org.apache.commons.betwixt.XMLIntrospector.addProperty(XMLIntrospector.java:
> 552)
>         at
> org.apache.commons.betwixt.XMLIntrospector.addProperties(XMLIntrospector.jav
> a:477)
>         at
> org.apache.commons.betwixt.XMLIntrospector.introspect(XMLIntrospector.java:2
> 76)
>         at
> org.apache.commons.betwixt.XMLIntrospector.introspect(XMLIntrospector.java:2
> 14)
>         at
> org.apache.commons.betwixt.io.BeanReader.registerBeanClass(BeanReader.java:1
> 35)
>         at
> org.mycode.utils.xml.betwixt.XmlReader.createBeanReader(XmlReader.java:73)
>         at org.mycode.utils.xml.betwixt.XmlReader.parse(XmlReader.java:56)
>         at
> org.mycode.bin.Mycode.createAuthorizationPipeline(Mycode.java:574)
>         at org.mycode.bin.Mycode.init(Mycode.java:548)
>         at
> org.apache.catalina.core.StandardWrapper.loadServlet(StandardWrapper.java:10
> 91)
>         at
> org.apache.catalina.core.StandardWrapper.load(StandardWrapper.java:925)
>         at
> org.apache.catalina.core.StandardContext.loadOnStartup(StandardContext.java:
> 3857)
>         at
> org.apache.catalina.core.StandardContext.start(StandardContext.java:4118)
>         at
> org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:7
> 59)
>         at
> org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739)
>         at
> org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524)
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptor(HostConfig.java:589)
>         at
> org.apache.catalina.startup.HostConfig.deployDescriptors(HostConfig.java:536
> )
>         at
> org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:471)
>         at
> org.apache.catalina.startup.HostConfig.start(HostConfig.java:1102)
>         at
> org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:311)
>         at
> org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSuppor
> t.java:119)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1020)
>         at
> org.apache.catalina.core.StandardHost.start(StandardHost.java:718)
>         at
> org.apache.catalina.core.ContainerBase.start(ContainerBase.java:1012)
>         at
> org.apache.catalina.core.StandardEngine.start(StandardEngine.java:442)
>         at
> org.apache.catalina.core.StandardService.start(StandardService.java:450)
>         at
> org.apache.catalina.core.StandardServer.start(StandardServer.java:683)
>         at org.apache.catalina.startup.Catalina.start(Catalina.java:537)
>         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:271)
>         at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:409)
> 
> 
> -----Original Message-----
> From: Alexandre Vasseur [mailto:[email protected]]
> Sent: 09 August 2005 16:48
> To: [email protected]
> Subject: Re: [aspectwerkz-user] could not load class [java/lang/Object]
> 
> Hi
> 
> This is unusual.
> Could you try to have f.e. a JSP in your webapp (that looks like named
> "jsxserver") and write something like:
> 
> InputStream is =
> this.getClass().getClassLoader().getResourceAsStream("java/lang/Object.class
> ");
> InputStream is2 =
> ClassLoader.getSystemClassLoader().getResourceAsStream("java/lang/Object.cla
> ss");
> 
> if (is == null || is2 == null) {
>   throw new RuntimeException("should not happen");
> }
> 
> 
> Alex
> 
> On 8/9/05, Masayuki Takahashi <[email protected]> wrote:
> > hi,i'm using AspectWerkz2.0. i weave my aspect to my classes with
> > AspectWerkz ant task. it's fine for executing standalone, but deploying
> > on resin-3.0.14, exception occured.
> >
> > what's wrong?
> >
> > --
> > AW::WARNING - could not load class [java/lang/Object] as a resource in
> > loader [E
> > nvironmentClassLoader$2859291[web-app:http://localhost:8080/jsxserver]]
> > java.io.IOException: Class not found
> >         at
> > org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.readClass(Unkn
> > own Source)
> >         at
> > org.codehaus.aspectwerkz.org.objectweb.asm.ClassReader.<init>(Unknown
> >  Source)
> >         at
> > org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(A
> > smClassInfo.java:304)
> >         at
> > org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(A
> > smClassInfo.java:331)
> >         at
> > org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.createClassInf
> > oFromStream(AsmClassInfo.java:790)
> >         at
> > org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getClassInfo(A
> > smClassInfo.java:273)
> >         at
> > org.codehaus.aspectwerkz.reflect.impl.asm.AsmClassInfo.getSuperclass(
> > AsmClassInfo.java:632)
> >         at
> > org.codehaus.aspectwerkz.annotation.AspectAnnotationParser.parseField
> > Attributes(AspectAnnotationParser.java:151)
> >         at
> > org.codehaus.aspectwerkz.annotation.AspectAnnotationParser.doParse(As
> > pectAnnotationParser.java:99)
> >         at
> > org.codehaus.aspectwerkz.annotation.AspectAnnotationParser.parse(Aspe
> > ctAnnotationParser.java:57)
> >         at
> > org.codehaus.aspectwerkz.definition.DocumentParser.parseAspectElement
> > s(DocumentParser.java:433)
> >         at
> > org.codehaus.aspectwerkz.definition.DocumentParser.parseSystemElement
> > (DocumentParser.java:232)
> >         at
> > org.codehaus.aspectwerkz.definition.DocumentParser.parseSystemElement
> > s(DocumentParser.java:181)
> >         at
> > org.codehaus.aspectwerkz.definition.DocumentParser.parse(DocumentPars
> > er.java:168)
> >         at
> > org.codehaus.aspectwerkz.definition.XmlParser.parseNoCache(XmlParser.
> > java:178)
> >         at
> > org.codehaus.aspectwerkz.definition.SystemDefinitionContainer.registe
> > rClassLoader(SystemDefinitionContainer.java:128)
> >         at
> > org.codehaus.aspectwerkz.definition.SystemDefinitionContainer.getHier
> > archicalDefinitionsFor(SystemDefinitionContainer.java:317)
> >         at
> > org.codehaus.aspectwerkz.definition.SystemDefinitionContainer.getDefi
> > nitionsFor(SystemDefinitionContainer.java:225)
> >         at
> > org.codehaus.aspectwerkz.joinpoint.management.JoinPointManager.getAdv
> > iceInfoContainerForJoinPoint(JoinPointManager.java:282)
> >         at
> > org.codehaus.aspectwerkz.joinpoint.management.JoinPointManager.compil
> > eJoinPoint(JoinPointManager.java:230)
> >         at
> > org.codehaus.aspectwerkz.joinpoint.management.JoinPointManager.loadJo
> > inPoint(JoinPointManager.java:118)
> >         at jp.co.techfirm.service.AbstractService.aw$initJoinPoints(Abstra
> > ctService.java)
> >         at jp.co.techfirm.service.AbstractService.<clinit>(AbstractService
> > .java)
> >         at java.lang.Class.forName0(Native Method)
> >         at java.lang.Class.forName(Class.java:242)
> >         at org.springframework.util.ClassUtils.forName(ClassUtils.java:87)
> >         at
> > org.springframework.beans.factory.support.BeanDefinitionReaderUtils.c
> > reateBeanDefinition(BeanDefinitionReaderUtils.java:62)
> >         at
> > org.springframework.beans.factory.xml.DefaultXmlBeanDefinitionParser.
> > parseBeanDefinitionElement(DefaultXmlBeanDefinitionParser.java:362)
> >         at
> > org.springframework.beans.factory.xml.DefaultXmlBeanDefinitionParser.
> > parseBeanDefinitionElement(DefaultXmlBeanDefinitionParser.java:328)
> >         at
> > org.springframework.beans.factory.xml.DefaultXmlBeanDefinitionParser.
> > parseBeanDefinitions(DefaultXmlBeanDefinitionParser.java:265)
> >         at
> > org.springframework.beans.factory.xml.DefaultXmlBeanDefinitionParser.
> > registerBeanDefinitions(DefaultXmlBeanDefinitionParser.java:185)
> >         at
> > org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registe
> > rBeanDefinitions(XmlBeanDefinitionReader.java:238)
> >         at
> > org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBea
> > nDefinitions(XmlBeanDefinitionReader.java:155)
> >         at
> > org.springframework.beans.factory.xml.XmlBeanFactory.<init>(XmlBeanFa
> > ctory.java:68)
> >         at
> > org.springframework.beans.factory.xml.XmlBeanFactory.<init>(XmlBeanFa
> > ctory.java:56)
> >         at jp.co.techfirm.servlet.JsxServlet.init(JsxServlet.java:39)
> >         at javax.servlet.GenericServlet.init(GenericServlet.java:69)
> >         at
> > com.caucho.server.dispatch.ServletConfigImpl.createServlet(ServletCon
> > figImpl.java:599)
> >         at
> > com.caucho.server.dispatch.ServletManager.init(ServletManager.java:15
> > 2)
> >         at
> com.caucho.server.webapp.Application.start(Application.java:1546)
> >         at
> > com.caucho.server.deploy.DeployController.startImpl(DeployController.
> > java:563)
> >         at
> > com.caucho.server.deploy.StartAutoRedeployAutoStrategy.startOnInit(St
> > artAutoRedeployAutoStrategy.java:72)
> >         at
> > com.caucho.server.deploy.DeployController.startOnInit(DeployControlle
> > r.java:451)
> >         at
> > com.caucho.server.deploy.DeployContainer.start(DeployContainer.java:1
> > 57)
> >         at
> > com.caucho.server.webapp.ApplicationContainer.start(ApplicationContai
> > ner.java:610)
> >         at com.caucho.server.host.Host.start(Host.java:385)
> >         at
> > com.caucho.server.deploy.DeployController.startImpl(DeployController.
> > java:563)
> >         at
> > com.caucho.server.deploy.StartAutoRedeployAutoStrategy.startOnInit(St
> > artAutoRedeployAutoStrategy.java:72)
> >         at
> > com.caucho.server.deploy.DeployController.startOnInit(DeployControlle
> > r.java:451)
> >         at
> > com.caucho.server.deploy.DeployContainer.start(DeployContainer.java:1
> > 57)
> >         at
> > com.caucho.server.host.HostContainer.start(HostContainer.java:468)
> >         at
> > com.caucho.server.resin.ServletServer.start(ServletServer.java:934)
> >         at
> > com.caucho.server.deploy.DeployController.startImpl(DeployController.
> > java:563)
> >         at
> > com.caucho.server.deploy.AbstractDeployControllerStrategy.start(Abstr
> > actDeployControllerStrategy.java:56)
> >         at
> > com.caucho.server.deploy.DeployController.start(DeployController.java
> > :459)
> >         at com.caucho.server.resin.ResinServer.start(ResinServer.java:465)
> >         at com.caucho.server.resin.Resin.init(Resin.java)
> >         at com.caucho.server.resin.Resin.main(Resin.java:612)
> >
> >
> > --
> > masayuki takahashi
> >
> >
> 
>