2 Replies Latest reply on Oct 16, 2006 9:19 AM by shacka

Deploying SessionBean(EJB 3.0) problem

shacka Oct 12, 2006 5:38 PM

JBossAS: 4.0.4GA

Hi all,

I am trying to deploy an application that was created by NetBean5.5 Beta 2 with Jboss which has the following contents:

[1] Entity Bean (POJO, derived from DB)
[2] SessionBean (has one business method to create records using Entity Bean
[3] JSP/Servlet to call session bean to create records with user entered data

================================================

without [3], jboss deploys the application fine.
with [3] and SessionBean reference injected into the servlet, i get the following error at deployment.

17:18:55,912 INFO [EARDeployer] Init J2EE application: file:/C:/jboss-4.0.4.GA/server/default/deploy/MGA V2.0.ear
17:18:56,162 WARN [NestedThrowable] Duplicate throwable nesting of same base type: class org.jboss.deployment.DeploymentException is assignable from: class org.jboss.de
loyment.DeploymentException
17:18:56,162 ERROR [MainDeployer] Could not initialise deployment: file:/C:/jboss-4.0.4.GA/server/default/deploy/MGA V2.0.ear
org.jboss.deployment.DeploymentException: Failed to parse WEB-INF/web.xml; - nested throwable: (org.jboss.deployment.DeploymentException: expected one home tag)
 at org.jboss.web.AbstractWebContainer.parseMetaData(AbstractWebContainer.java:749)
 at org.jboss.web.AbstractWebContainer.init(AbstractWebContainer.java:356)
 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.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.deployment.SubDeployerInterceptorSupport.init(SubDeployerInterceptorSupport.java:119)
 at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.init(SubDeployerInterceptorSupport.java:172)
 at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:87)
 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 $Proxy44.init(Unknown Source)
 at org.jboss.deployment.MainDeployer.init(MainDeployer.java:861)
 at org.jboss.deployment.MainDeployer.init(MainDeployer.java:881)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:798)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
 at sun.reflect.GeneratedMethodAccessor13.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.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 $Proxy6.deploy(Unknown Source)
 at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
 at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:634)
 at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
 at org.jboss.deployment.scanner.AbstractDeploymentScanner.startService(AbstractDeploymentScanner.java:336)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
 at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
 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.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.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.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 $Proxy4.start(Unknown Source)
 at org.jboss.deployment.SARDeployer.start(SARDeployer.java:302)
 at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1007)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:808)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:771)
 at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:755)
 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.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 $Proxy5.deploy(Unknown Source)
 at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:482)
 at org.jboss.system.server.ServerImpl.start(ServerImpl.java:362)
 at org.jboss.Main.boot(Main.java:200)
 at org.jboss.Main$1.run(Main.java:464)
 at java.lang.Thread.run(Thread.java:595)
Caused by: org.jboss.deployment.DeploymentException: expected one home tag
 at org.jboss.metadata.MetaData.getUniqueChild(MetaData.java:113)
 at org.jboss.metadata.EjbRefMetaData.importEjbJarXml(EjbRefMetaData.java:85)
 at org.jboss.metadata.WebMetaData.importWebXml(WebMetaData.java:926)
 at org.jboss.metadata.WebMetaData.importXml(WebMetaData.java:738)
 at org.jboss.web.AbstractWebContainer.parseMetaData(AbstractWebContainer.java:744)
 ... 90 more
17:18:56,271 ERROR [URLDeploymentScanner] Incomplete Deployment listing:

--- Incompletely deployed packages ---
org.jboss.deployment.DeploymentInfo@981b580c { url=file:/C:/jboss-4.0.4.GA/server/default/deploy/MGA V2.0.ear }
 deployer: org.jboss.deployment.EARDeployer@1e78c96
 status: null
 state: FAILED
 watch: file:/C:/jboss-4.0.4.GA/server/default/deploy/MGA V2.0.ear
 altDD: null
 lastDeployed: 1160687936162
 lastModified: 1160687935912
 mbeans:


17:18:56,318 INFO [Http11BaseProtocol] Starting Coyote HTTP/1.1 on http-0.0.0.0-8080
17:18:56,396 INFO [ChannelSocket] JK: ajp13 listening on /0.0.0.0:8009
17:18:56,412 INFO [JkMain] Jk running ID=0 time=0/47 config=null
17:18:56,412 INFO [Server] JBoss (MX MicroKernel) [4.0.4.GA (build: CVSTag=JBoss_4_0_4_GA date=200605151000)] Started in 12s:688ms

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
 <servlet>
 <servlet-name>CreateNewCarrierServlet</servlet-name>
 <servlet-class>com.univeris.mga.servlet.CreateNewCarrierServlet</servlet-class>
 </servlet>
 <servlet-mapping>
 <servlet-name>CreateNewCarrierServlet</servlet-name>
 <url-pattern>/addCarrier</url-pattern>
 </servlet-mapping>
 <session-config>
 <session-timeout>
 30
 </session-timeout>
 </session-config>
 <welcome-file-list>
 <welcome-file>
 index.jsp
 </welcome-file>
 </welcome-file-list>
 <ejb-ref>
 <ejb-ref-name>ejb/CarrierBean</ejb-ref-name>
 <ejb-ref-type>Session</ejb-ref-type>
 <remote>com.univeris.mga.ejb.session.CarrierRemote</remote>
 </ejb-ref>
 </web-app>

I don't understand why it is looking for home interface reference in web.xml when EJB 3.0 gets rid of the need for it.

Am I missing something??

Thank you.

1. Re: Deploying SessionBean(EJB 3.0) problem

joncraven Oct 15, 2006 4:42 AM (in response to shacka)

Me too! (And in my case, I confirm that the same problem arises with "local" in place of "remote"). I guess the EJB3 preview doesn't support EAR files yet?
Actions
2. Re: Deploying SessionBean(EJB 3.0) problem

shacka Oct 16, 2006 9:19 AM (in response to shacka)

I came across an article by Bill Burke on this topic.
http://docs.jboss.org/ejb3/app-server/tutorial/ear/ear.html)http://docs.jboss.org/ejb3/app-server/tutorial/ear/ear.html

"@EJB annotations are usable in servlets and JSPs, but unfortunately, we have not yet updated tomcat to support it. Also, Tomcat works with the old XML format so you cannot use XML either. So for now, you must lookup the EJB via its global JNDI name."

It tells you how to use session bean reference from Servlet which will work with JBoss 4.0.x.

I guess <ejb-ref> is for the legacy EJB 2.1 purpose and in 2.1, local & remote are mandatory.

However, when I use NetBean 5.5 Beta2 to insert a Enterprise bean reference, it does add ejb-ref into web.xml so Sun has to address this issue.
Actions

Go to original post