JBoss 4.2.1 RemoteEJB Lookup ClassCastException
kyle.bober Nov 11, 2009 5:47 PMI have two EAR files that each contain an ejb jar file.
I have configured each of the EAR files to isolate there classloaders like so..
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE jboss-app PUBLIC "-//JBoss//DTD J2EE Application 1.4//EN" "http://www.jboss.org/j2ee/dtd/jboss-app_4_2.dtd"> <jboss-app> <loader-repository>com.kbss:loader=service1.ear <loader-repository-config>java2ParentDelegation=false</loader-repository-config> </loader-repository> </jboss-app>
and
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE jboss-app PUBLIC "-//JBoss//DTD J2EE Application 1.4//EN" "http://www.jboss.org/j2ee/dtd/jboss-app_4_2.dtd"> <jboss-app> <loader-repository>com.kbss:loader=service2.ear <loader-repository-config>java2ParentDelegation=false</loader-repository-config> </loader-repository> </jboss-app>
Here is the Local, Remote and Implementation class for Service1EJB
Local
package com.kbss; import java.util.List; import javax.ejb.Remote; @Local public interface IService1Local { public static final String EJB_JNDI = "Service1/local"; public Integer read() throws RemoteException; }
Remote
package com.thesearchagency.mms.service.customization; import java.util.List; import javax.ejb.Remote; import javax.xml.bind.annotation.XmlTransient; @Remote public interface IService1Remote { /** * JNDI registrations for locating interface: */ public static final String EJB_JNDI = "Service1/remote"; public Integer read() throws RemoteException; }
Implementation
package com.kbss; import javax.ejb.Stateless; import org.jboss.annotation.ejb.LocalBinding; import org.jboss.annotation.ejb.RemoteBinding; @Stateless @LocalBinding(jndiBinding=IService1Local.EJB_JNDI) @RemoteBinding(jndiBinding=IService1Remote.EJB_JNDI) public class Service1EJB implements IService1Local, IService1Remote { public Integer read() throws RemoteException { return new Integer(123); } }
Here is the Local, Remote and Implementation class for Service2EJB
Local
package com.kbss; import javax.ejb.Local; @Local public interface IService2Local { public static final String EJB_JNDI = "Service2/local"; public void test() throws RemoteException; }
Remote
package com.kbss; import javax.ejb.Remote; @Remote public interface IService2Remote { public static final String EJB_JNDI = "Service2/remote"; public void test() throws RemoteException; }
Implementation
package com.kbss; import javax.ejb.Stateless; import javax.naming.InitialContext; import javax.naming.NamingException; import org.jboss.annotation.ejb.LocalBinding; import org.jboss.annotation.ejb.RemoteBinding; @Stateless @LocalBinding(jndiBinding=IUserLocal.EJB_JNDI) @RemoteBinding(jndiBinding=IUserRemote.EJB_JNDI) public class Service2EJB implements IService2Local, IService2Remote { public void test() throws RemoteException { InitialContext ctx = new InitialContext(); IService1Remote remote = (IService1Remote)ctx.lookup(IService1Remote.EJB_JNDI); System.out.println("Remote Integer :: "+remote.read()); } }
When I call the test method on service1 I am always presented with the following ClassCastException:
(I changed some of the above code to remove my clients information so the Exception Stack maybe a little different then the classes stated above)
javax.ejb.EJBException: java.lang.ClassCastException: $Proxy187 at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:184) at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:81) at $Proxy196.create(Unknown Source) at com.kbss.mms.service.user.impl.UserWS.create(UserWS.java:48) 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.ws.core.server.ServiceEndpointInvokerJSE.invokeServiceEndpointInstance(ServiceEndpointInvokerJSE.java:104) at org.jboss.ws.core.server.AbstractServiceEndpointInvoker.invoke(AbstractServiceEndpointInvoker.java:207) at org.jboss.ws.core.server.ServiceEndpoint.processRequest(ServiceEndpoint.java:212) at org.jboss.ws.core.server.ServiceEndpointManager.processRequest(ServiceEndpointManager.java:448) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.doPost(AbstractServiceEndpointServlet.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.service(AbstractServiceEndpointServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.ClassCastException: $Proxy187 at com.kbss.mms.service.user.impl.UserEJB.getRemoteService(UserEJB.java:83) at com.kbss.mms.service.user.impl.UserEJB.create(UserEJB.java:52) 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.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) ... 48 more 17:38:07,031 ERROR [SOAPFaultHelperJAXWS] SOAP request exception javax.ejb.EJBException: java.lang.ClassCastException: $Proxy187 at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:63) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:191) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:77) at org.jboss.ejb3.security.Ejb3AuthenticationInterceptor.invoke(Ejb3AuthenticationInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:46) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:214) at org.jboss.ejb3.stateless.StatelessContainer.localInvoke(StatelessContainer.java:184) at org.jboss.ejb3.stateless.StatelessLocalProxy.invoke(StatelessLocalProxy.java:81) at $Proxy196.create(Unknown Source) at com.kbss.mms.service.user.impl.UserWS.create(UserWS.java:48) 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.ws.core.server.ServiceEndpointInvokerJSE.invokeServiceEndpointInstance(ServiceEndpointInvokerJSE.java:104) at org.jboss.ws.core.server.AbstractServiceEndpointInvoker.invoke(AbstractServiceEndpointInvoker.java:207) at org.jboss.ws.core.server.ServiceEndpoint.processRequest(ServiceEndpoint.java:212) at org.jboss.ws.core.server.ServiceEndpointManager.processRequest(ServiceEndpointManager.java:448) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.doPost(AbstractServiceEndpointServlet.java:114) at javax.servlet.http.HttpServlet.service(HttpServlet.java:710) at org.jboss.ws.core.server.AbstractServiceEndpointServlet.service(AbstractServiceEndpointServlet.java:75) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:179) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:241) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:844) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:580) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:595) Caused by: java.lang.ClassCastException: $Proxy187 at com.kbss.mms.service.user.impl.UserEJB.getRemoteService(UserEJB.java:83) at com.thesearchagency.mms.service.user.impl.UserEJB.create(UserEJB.java:52) 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.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:112) at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) ... 48 more
Both of these EAR are deployed on the same JBoss instance. I assume I am doing something wrong in trying to make a RemoteEJB call. Any help here would be much appreciated. I have looked at all the other forum posts in the EJB forum and nothing has helped me resolve this issue.
Thanks,
Kyle