[jbossseam-issues] [JBoss JIRA] Commented: (JBSEAM-1583) seam:component intercept uses Seam standard rules by default

seam:component intercept uses Seam standard rules by default ------------------------------------------------------------ Key: JBSEAM-1583 URL: http://jira.jboss.com/jira/browse/JBSEAM-1583 Project: JBoss Seam Issue Type: Bug Components: Spring Affects Versions: 2.0.0.BETA1 Reporter: Magnus Heino Assigned To: Michael Youngstrom From spring-seam-2.0.xsd, intercept: Determines whether Seam interceptors should be wrapped around a bean, by overriding Seam's default rules. Seldom do you want the seam interceptors wrapped around a sprig singleton. Auto will use choose no interception for a singleton and use Seam standard rules otherwise. Looking at the code, I can't find anything about this "no interception for a singleton" default. This bean <bean id="processRepository" class="se.lantmateriet.wfl.dataaccess.WsProcessRepository"> <constructor-arg value="http://localhost/avtal/avtalservice.asmx"/> <seam:component/> </bean> fails like this: 12:45:35,203 DEBUG [ProxyUtils] Creating proxy for Spring Seam component 'processRepository' using class: se.lantmateriet.wfl.dataaccess.WsProcessRepository 12:45:35,282 INFO [DefaultListableBeanFactory] Destroying singletons in org.springframework.beans.factory.support.DefaultListableBeanFactory@8c2d94: defining beans [org.jboss.seam.ioc.spring.seamComponentPostProcessor,processRepository]; root of factory hierarchy 12:45:35,297 ERROR [[/wfl-seam]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processRepository' defined in ServletContext resource [/WEB-INF/applicationContext.xml]: Initialization of bean failed; nested exception is org.jboss.seam.InstantiationException: Could not instantiate Seam component: processRepository at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:430) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:255) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:252) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:689) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:358) at org.jboss.seam.ioc.spring.ContextLoader.startupContextLoader(ContextLoader.java:64) 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:21) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:124) at org.jboss.seam.Component.callComponentMethod(Component.java:1957) at org.jboss.seam.Component.callCreateMethod(Component.java:1880) at org.jboss.seam.Component.newInstance(Component.java:1859) at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304) at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278) at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:98) at org.jboss.seam.init.Initialization.init(Initialization.java:508) at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3854) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4359) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:761) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:741) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553) Caused by: org.jboss.seam.InstantiationException: Could not instantiate Seam component: processRepository at org.jboss.seam.Component.newInstance(Component.java:1853) at org.jboss.seam.Component.getInstance(Component.java:1756) at org.jboss.seam.Component.getInstance(Component.java:1735) at org.jboss.seam.Component.getInstance(Component.java:1729) at org.jboss.seam.ioc.spring.SeamComponentPostProcessor.postProcessAfterInitialization(SeamComponentPostProcessor.java:49) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:314) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1184) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:407) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:255) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:252) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:689) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:358) at org.jboss.seam.ioc.spring.ContextLoader.startupContextLoader(ContextLoader.java:64) 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:21) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:124) at org.jboss.seam.Component.callComponentMethod(Component.java:1957) at org.jboss.seam.Component.callCreateMethod(Component.java:1880) at org.jboss.seam.Component.newInstance(Component.java:1859) at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304) at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278) at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:98) at org.jboss.seam.init.Initialization.init(Initialization.java:508) Caused by: java.lang.InstantiationException: se.lantmateriet.wfl.dataaccess.WsProcessRepository_$$_javassist_0 at java.lang.Class.newInstance0(Class.java:340) at java.lang.Class.newInstance(Class.java:308) at org.jboss.seam.ioc.ProxyUtils.enhance(ProxyUtils.java:71) at org.jboss.seam.ioc.IoCComponent.instantiateJavaBean(IoCComponent.java:94) at org.jboss.seam.Component.instantiate(Component.java:1154) at org.jboss.seam.Component.newInstance(Component.java:1849) at org.jboss.seam.Component.getInstance(Component.java:1756) at org.jboss.seam.Component.getInstance(Component.java:1735) at org.jboss.seam.Component.getInstance(Component.java:1729) at org.jboss.seam.ioc.spring.SeamComponentPostProcessor.postProcessAfterInitialization(SeamComponentPostProcessor.java:49) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyBeanPostProcessorsAfterInitialization(AbstractAutowireCapableBeanFactory.java:314) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1184) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:407) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:255) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:156) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:252) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:164) at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:287) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:689) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:358) at org.jboss.seam.ioc.spring.ContextLoader.startupContextLoader(ContextLoader.java:64) 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:21) at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:124) at org.jboss.seam.Component.callComponentMethod(Component.java:1957) at org.jboss.seam.Component.callCreateMethod(Component.java:1880) If I change <seam:component/> to <seam:component intercept="false"/> everything works. 1. Default for stateless spring beans seems to be true since seam standard rules are applied if intercept is null, that is not defined. bug? 2. Why would I want to use intercept="true" anyway? What interceptors will be added? 3. Why is it failing with intercept="true"?