CLONE - seam:component intercept uses Seam standard rules by default
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Key: JBSEAM-4743
URL: https://issues.jboss.org/browse/JBSEAM-4743
Project: Seam
Issue Type: Bug
Components: Spring
Reporter: Magnus Heino
Assignee: Michael Youngstrom
Fix For: The future
>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.defaultlistablebeanfact...@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"?
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