While going through the Jboss Seam examples as a tutorial/learning exercise, I encountered a problem with only the Seam-Spring tutorial example.
The Seam-Spring example generates a java.lang.NullPointerException error. ... | 2007-05-29 16:56:43,461 DEBUG [org.springframework.beans.factory.xml.DefaultDocumentLoader] Using JAXP provider [org.apache.xerces.jaxp.DocumentBuilderFactoryImpl] | 2007-05-29 16:56:43,462 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,464 DEBUG [org.springframework.beans.factory.xml.PluggableSchemaResolver] Found XML schema [http://www.springframework.org/schema/beans/spring-beans-2.0.xsd] in classpath: org/springframework/beans/factory/xml/spring-beans-2.0.xsd | 2007-05-29 16:56:43,473 DEBUG [org.springframework.beans.factory.xml.PluggableSchemaResolver] Found XML schema [http://www.springframework.org/schema/tool/spring-tool-2.0.xsd] in classpath: org/springframework/beans/factory/xml/spring-tool-2.0.xsd | 2007-05-29 16:56:43,477 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,483 DEBUG [org.springframework.beans.factory.xml.DefaultNamespaceHandlerResolver] Loaded mappings [{http://www.springframework.org/schema/p=org.springframework.beans.factory.xml.SimplePropertyNamespaceHandler, http://www.springframework.org/schema/lang=org.springframework.scripting.config.LangNamespaceHandler, http://www.springframework.org/schema/jee=org.springframework.ejb.config.JeeNamespaceHandler, http://www.springframework.org/schema/aop=org.springframework.aop.config.AopNamespaceHandler, http://www.springframework.org/schema/util=org.springframework.beans.factory.xml.UtilNamespaceHandler, http://www.springframework.org/schema/tx=org.springframework.transaction.config.TxNamespaceHandler}] | 2007-05-29 16:56:43,492 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,501 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,503 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,512 DEBUG [org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader] Loading bean definitions | 2007-05-29 16:56:43,512 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,523 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,523 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,533 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,534 DEBUG [org.jboss.mx.loading.RepositoryClassLoader] setRepository, [EMAIL PROTECTED], [EMAIL PROTECTED] url=null ,addedOrder=0} | 2007-05-29 16:56:43,534 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/seam-spring]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener | org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from ServletContext resource [/WEB-INF/applicationContext.xml]; nested exception is java.lang.NullPointerException | Caused by: | java.lang.NullPointerException | at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.decorateIfRequired(BeanDefinitionParserDelegate.java:1142) | at org.springframework.beans.factory.xml.BeanDefinitionParserDelegate.decorateBeanDefinitionIfRequired(BeanDefinitionParserDelegate.java:1132) | at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.processBeanDefinition(DefaultBeanDefinitionDocumentReader.java:237) | at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseDefaultElement(DefaultBeanDefinitionDocumentReader.java:151) | at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.parseBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:130) | at org.springframework.beans.factory.xml.DefaultBeanDefinitionDocumentReader.registerBeanDefinitions(DefaultBeanDefinitionDocumentReader.java:90) | at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.registerBeanDefinitions(XmlBeanDefinitionReader.java:458) | at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.doLoadBeanDefinitions(XmlBeanDefinitionReader.java:353) | at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:303) | at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:280) | at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:131) | at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:147) | at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:124) | at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:92) | at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:100) | at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:298) | at org.jboss.seam.ioc.spring.ContextLoader.startupContextLoader(ContextLoader.java:59) | at org.jboss.seam.ioc.spring.ContextLoader.create(ContextLoader.java:43) | 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:597) | at org.jboss.seam.util.Reflections.invoke(Reflections.java:20) | at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:123) | at org.jboss.seam.Component.callComponentMethod(Component.java:1834) | at org.jboss.seam.Component.callCreateMethod(Component.java:1757) | at org.jboss.seam.Component.newInstance(Component.java:1746) | at org.jboss.seam.contexts.Lifecycle.startup(Lifecycle.java:175) | at org.jboss.seam.contexts.Lifecycle.endInitialization(Lifecycle.java:145) | at org.jboss.seam.init.Initialization.init(Initialization.java:504) | at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:33) | at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3763) | at org.apache.catalina.core.StandardContext.start(StandardContext.java:4211) | at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:759) | at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:739) | at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:524) | 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:597) | at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503) | at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.apache.catalina.core.StandardContext.init(StandardContext.java:5052) | 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:597) | at org.apache.commons.modeler.BaseModelMBean.invoke(BaseModelMBean.java:503) | at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeployInternal(TomcatDeployer.java:297) | at org.jboss.web.tomcat.tc5.TomcatDeployer.performDeploy(TomcatDeployer.java:103) | at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:371) | at org.jboss.web.WebModule.startModule(WebModule.java:83) | at org.jboss.web.WebModule.startService(WebModule.java:61) | at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289) | at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245) | at sun.reflect.GeneratedMethodAccessor2.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978) | at $Proxy0.start(Unknown Source) | at org.jboss.system.ServiceController.start(ServiceController.java:417) | at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:86) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) | at $Proxy42.start(Unknown Source) | at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466) | at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) | at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) | at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142) | at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97) | at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238) | at org.jboss.ws.integration.jboss.DeployerInterceptor.start(DeployerInterceptor.java:92) | at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188) | at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) | at $Proxy43.start(Unknown Source) | at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025) | at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015) | at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819) | at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782) | at sun.reflect.GeneratedMethodAccessor17.invoke(Unknown Source) | at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) | at java.lang.reflect.Method.invoke(Method.java:597) | at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155) | at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94) | at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) | at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142) | at org.jboss.mx.server.Invocation.invoke(Invocation.java:88) | at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264) | at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659) | at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210) | at $Proxy8.deploy(Unknown Source) | at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421) | at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634) | at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263) | at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274) | at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225) | ... | Based on what I have read in the Jboss forums, I think I have a ClassLoader problem. But I do not know why? (as this is a stock tutorial example) The following software versions are installed on my computer. Jboss AS=4.0.5-r2 Spring =2.0.3 Jboss Seam=1.2.1 GA While disecting the problem, I reduced the Spring configuration file applicationContext.xml to the bare minimum while preserving the same generated error. (All other files in the tutorial are untouched) <?xml version="1.0" encoding="UTF-8"?> | <beans xmlns="http://www.springframework.org/schema/beans"; | xmlns:aop="http://www.springframework.org/schema/aop"; | xmlns:util="http://www.springframework.org/schema/util"; | xmlns:seam="http://jboss.com/products/seam/spring-seam"; | xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; | xmlns:tx="http://www.springframework.org/schema/tx"; | xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd | http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.0.xsd | http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-2.0.xsd | http://jboss.com/products/seam/spring-seam http://jboss.com/products/seam/spring-seam-1.2.xsd | http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.0.xsd"; | default-lazy-init="true"> | | <bean id="userService" class="org.jboss.seam.example.spring.UserService"> | <property name="entityManager" ref="em"/> | <seam:component /> | </bean> | | <seam:instance name="entityManager" id="em" proxy="true"/> | </beans> | What can I do to make Spring register, the userService bean as a component with Seam/SeamListener ? Any ideas anyone? Thanks in advance View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4049411#4049411 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4049411 _______________________________________________ jboss-user mailing list [email protected] https://lists.jboss.org/mailman/listinfo/jboss-user
