Using JBoss EL without SEAM

[thomasgo]

Hi,

I want to use JBoss EL in our web application without incorporating SEAM completely.
(I'm currently evaluating SEAM for our projects btw. :) ).

I was quite successful but now I had to change my app to use an isolated classloader (in order to use an updated hibernate version).
Now I'm getting errors like this:

22:01:28,022 ERROR [config] Unable to instantiate ExpressionFactory 'org.jboss.el.ExpressionFactoryImpl'
22:01:28,085 ERROR [[/interpraesent]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.J
BossJSFConfigureListener
com.sun.faces.config.ConfigurationException: It appears the JSP version of the container is older than 2.1 and unable to locate the EL RI expression f
actory, com.sun.el.ExpressionFactoryImpl.  If not using JSP or the EL RI, make sure the context initialization parameter, com.sun.faces.expressionFact
ory, is properly set.
        at com.sun.faces.config.ConfigureListener.registerELResolverAndListenerWithJsp(ConfigureListener.java:545)
        at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:211)
        at org.jboss.web.jsf.integration.config.JBossJSFConfigureListener.contextInitialized(JBossJSFConfigureListener.java:71)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3856)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4361)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:790)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:770)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553)
        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:585)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
        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:5312)
        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:585)
        at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
        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.service.TomcatDeployer.performDeployInternal(TomcatDeployer.java:301)
        at org.jboss.web.tomcat.service.TomcatDeployer.performDeploy(TomcatDeployer.java:104)
        at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:375)
        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.GeneratedMethodAccessor3.invoke(Unknown Source)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        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)
        ...|

Before I used the isolated classloader, I had JBoss EL defined as a dependency like this:

<dependency>
     <groupId>org.jboss.el</groupId>
     <artifactId>jboss-el</artifactId>
     <type>jar</type>
     <exclusions>
          <exclusion>
               <groupId>javax.el</groupId>
               <artifactId>el-api</artifactId>
          </exclusion>
     </exclusions>
</dependency>

Am I missing a dependency or a specific version?

Thanks for your help.

Thomas

PS.: I'm using JBoss 4.2.3.GA, JSF 1.2, Facelets 1.1.14, RichFaces 3.3.2.SR1 (and in case you need it: Hibernate 3.3.2.GA)

[thomasgo]

I think I found a workaround, but I'm not quite satisfied with that.

I replaced jsf-api.jar and jsf-impl.jar in my server's deploy/jboss-web.deployer/sf-libs folder with jsf-api-1.213.jar and jsf-impl-1.213.jar and now it works.

However, I don't like the option of replacing jars that are bundled with JBoss. I'd rather like to override them, i.e. make JBoss use the jars I provided in my app instead of the bundled ones.

When I only provide the jars with my application I get the following exception:

09:35:12,611 ERROR [application] JSF1029: The specified InjectionProvider implementation 'org.jboss.web.jsf.integration.injection.JBossInjectionProvider' does not implement the InjectionProvider interface.
09:35:12,611 INFO  [application] JSF1048: PostConstruct/PreDestroy annotations present.  ManagedBeans methods marked with these annotations will have said annotations processed.
09:35:15,107 ERROR [[/interpraesent]] Exception sending context initialized event to listener instance of class org.jboss.web.jsf.integration.config.JBossJSFConfigureListener
java.lang.ClassCastException: com.sun.faces.config.WebConfiguration
        at com.sun.faces.config.WebConfiguration.getInstance(WebConfiguration.java:154)
        at com.sun.faces.config.ConfigureListener.contextInitialized(ConfigureListener.java:144)
        at org.jboss.web.jsf.integration.config.JBossJSFConfigureListener.contextInitialized(JBossJSFConfigureListener.java:71)
        at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3856)
        at org.apache.catalina.core.StandardContext.start(StandardContext.java:4361)
        at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:790)
        at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:770)
        at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553)
        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:585)
        ...

If anyone can help me with this, I'd appreciate it. However, I know this now is more of a JBoss specific question, so I'll also ask the guys in the JBoss AS forum.

Thanks.

Thomas

[thomasgo]

I thought I'd share the solution I found:

I need to add jboss-faces.jar to my war's lib folder, so that it now looks like this:

lib
 +-- jboss-faces-4.2.3.GA.jar
 +-- jsf-api-1.2_13.jar
 +-- jsf_impl-1.2_13.jar
 +-- ... (other jars)