[jboss-user] [JBoss Seam] - Re: Very strange exception

conanchan do-not-reply at jboss.com
Sun Nov 5 04:34:09 EST 2006


Me 2 have this similar problem, my env is:
 JBoss 4.05 GA
 JSF (MyFace 1.1.1)

@Remote
public interface HelloWord {
   public String getHello();
}

HelloWordBean:-
@Stateless
public class HelloWordBean implements HelloWord {
	public static final String RemoteJNDIName =  HelloWordBean.class.getSimpleName() + "/remote";

    @PersistenceContext
    private EntityManager em;  
    
    /** Creates a new instance of HelloWordBean */
    public HelloWordBean() {
    }
    
	public String getHello() {
		// TODO Auto-generated method stub
		return "hello from HelloWordBean";
	}
    

public final class ManagedBean extends Object {
	private HelloWord bookSessionBean;

	/**
	 * 
	 */
	private String hello;

	/**
	 * @return the hello
	 */
	public String getHello() {
		bookSessionBean = lookupBookSessionBean();
		hello = bookSessionBean.getHello();
		return hello;
	}


	private HelloWord lookupBookSessionBean() {
			InitialContext ctx = new InitialContext(); // JNDI ENC
			HelloWord s1 = (HelloWord) ctx.lookup(HelloWordBean.RemoteJNDIName);
			System.out.println("s1.getHello=" + s1.getHello());
       }
}
      
17:41:16,421 ERROR [[jsp]] Servlet.service() for servlet jsp threw exception
javax.faces.el.EvaluationException: Cannot get value for expression '#{ManagedBean.hello}'
	at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:397)
	at javax.faces.component.UIOutput.getValue(UIOutput.java:75)
	at org.apache.myfaces.renderkit.RendererUtils.getStringValue(RendererUtils.java:225)
	at org.apache.myfaces.renderkit.html.HtmlTextRendererBase.renderOutput(HtmlTextRendererBase.java:65)
	at org.apache.myfaces.renderkit.html.HtmlTextRendererBase.encodeEnd(HtmlTextRendererBase.java:53)
	at javax.faces.component.UIComponentBase.encodeEnd(UIComponentBase.java:331)
	at javax.faces.webapp.UIComponentTag.encodeEnd(UIComponentTag.java:349)
	at javax.faces.webapp.UIComponentTag.doEndTag(UIComponentTag.java:253)
	at org.apache.jsp.index_jsp._jspx_meth_h_outputText_0(index_jsp.java:155)
	at org.apache.jsp.index_jsp._jspx_meth_f_view_0(index_jsp.java:124)
	at org.apache.jsp.index_jsp._jspService(index_jsp.java:87)
	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	at java.lang.Thread.run(Unknown Source)
Caused by: javax.faces.el.EvaluationException: jsf.beans.ManagedBean
	at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:78)
	at org.apache.myfaces.el.ELParserHelper$MyPropertySuffix.evaluate(ELParserHelper.java:532)
	at org.apache.commons.el.ComplexValue.evaluate(ComplexValue.java:145)
	at org.apache.myfaces.el.ValueBindingImpl.getValue(ValueBindingImpl.java:378)
	... 48 more
Caused by: javax.faces.el.EvaluationException: Bean: jsf.beans.ManagedBean, property: hello
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:404)
	at org.apache.myfaces.el.PropertyResolverImpl.getValue(PropertyResolverImpl.java:71)
	... 51 more
Caused by: java.lang.reflect.InvocationTargetException
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.myfaces.el.PropertyResolverImpl.getProperty(PropertyResolverImpl.java:400)
	... 52 more
Caused by: java.lang.IllegalArgumentException: object is not an instance of declaring class
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.jboss.ha.framework.interfaces.HARMIClient.invoke(HARMIClient.java:258)
	at $Proxy99.lookup(Unknown Source)
	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:625)
	at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587)
	at javax.naming.InitialContext.lookup(Unknown Source)
	at jsf.beans.ManagedBean.lookupBookSessionBean(ManagedBean.java:47)
	at jsf.beans.ManagedBean.getHello(ManagedBean.java:30)
	... 57 more
17:41:16,421 ERROR [[Faces Servlet]] Servlet.service() for servlet Faces Servlet threw exception
javax.faces.FacesException: Cannot get value for expression '#{ManagedBean.hello}'
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:421)
	at org.apache.myfaces.application.jsp.JspViewHandlerImpl.renderView(JspViewHandlerImpl.java:234)
	at org.apache.myfaces.lifecycle.LifecycleImpl.render(LifecycleImpl.java:352)
	at javax.faces.webapp.FacesServlet.service(FacesServlet.java:107)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.myfaces.component.html.util.ExtensionsFilter.doFilter(ExtensionsFilter.java:122)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
	at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:175)
	at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:74)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
	at org.jboss.web.tomcat.tc5.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:156)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
	at org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
	at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
	at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWorkerThread.java:112)
	at java.lang.Thread.run(Unknown Source)
Caused by: org.apache.jasper.JasperException: Cannot get value for expression '#{ManagedBean.hello}'
	at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:512)
	at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:395)
	at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
	at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
	at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:672)
	at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:463)
	at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:398)
	at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:301)
	at org.apache.myfaces.context.servlet.ServletExternalContextImpl.dispatch(ServletExternalContextImpl.java:415)
	... 25 more


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