Problem with calling EJB3 Stateless Session Bean from IceFaces
I am trying to use a stateless session bean as the dragListener for IceFaces drag and drop. I am trying a very simple exmaple. My session bean has one method with the signature addSongToList(DragEvent dragEvent). When I drop my object onto the target I get the following exception:
11:26:31,190 WARN [ExceptionFilter] handling uncaught exception javax.servlet.ServletException: Servlet execution threw an exception at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:313) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:83) at org.jboss.seam.web.LoggingFilter.doFilter(LoggingFilter.java:58) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:64) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 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:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619) Caused by: java.lang.LinkageError: loader constraint violation: loader (instance of org/jboss/web/tomcat/service/WebCtxLoader$ENCLoader) previously initiated loading for a different type with name "com/icesoft/faces/component/dragdrop/DragEvent" at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at $Proxy230.<clinit>(Unknown Source) at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:39) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:27) at java.lang.reflect.Constructor.newInstance(Constructor.java:513) at java.lang.reflect.Proxy.newProxyInstance(Proxy.java:588) at org.jboss.ejb3.proxy.objectfactory.ProxyObjectFactory.redefineProxyInTcl(ProxyObjectFactory.java:349) at org.jboss.ejb3.proxy.objectfactory.session.SessionProxyObjectFactory.createProxy(SessionProxyObjectFactory.java:134) at org.jboss.ejb3.proxy.objectfactory.session.stateless.StatelessSessionProxyObjectFactory.getProxy(StatelessSessionProxyObjectFactory.java:79) at org.jboss.ejb3.proxy.objectfactory.ProxyObjectFactory.getObjectInstance(ProxyObjectFactory.java:156) at javax.naming.spi.NamingManager.getObjectInstance(NamingManager.java:304) at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1447) at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1464) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:818) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:682) at javax.naming.InitialContext.lookup(InitialContext.java:392) at org.jboss.seam.Component.instantiateSessionBean(Component.java:1367) at org.jboss.seam.Component.instantiate(Component.java:1331) at org.jboss.seam.Component.newInstance(Component.java:2084) at org.jboss.seam.Component.getInstance(Component.java:1988) at org.jboss.seam.Component.getInstance(Component.java:1950) at org.jboss.seam.Component.getInstance(Component.java:1944) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:55) at org.jboss.seam.Namespace.getComponentInstance(Namespace.java:50) at org.jboss.seam.el.SeamELResolver.resolveBase(SeamELResolver.java:166) at org.jboss.seam.el.SeamELResolver.getValue(SeamELResolver.java:53) at javax.el.CompositeELResolver.getValue(CompositeELResolver.java:54) at com.sun.faces.el.FacesCompositeELResolver.getValue(FacesCompositeELResolver.java:72) at org.jboss.el.parser.AstIdentifier.getValue(AstIdentifier.java:44) at org.jboss.el.parser.AstValue.getTarget(AstValue.java:34) at org.jboss.el.parser.AstValue.invoke(AstValue.java:95) at org.jboss.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:276) at org.jboss.seam.el.OptionalParameterMethodExpression.invoke(OptionalParameterMethodExpression.java:39) at com.sun.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:68) at com.sun.facelets.el.LegacyMethodBinding.invoke(LegacyMethodBinding.java:69) at com.icesoft.faces.component.ext.HtmlPanelGroup.broadcast(HtmlPanelGroup.java:739) at com.icesoft.faces.component.panelseries.UISeries$RowEvent.broadcast(UISeries.java:559) at com.icesoft.faces.component.panelseries.UISeries.broadcast(UISeries.java:238) at javax.faces.component.UIData.broadcast(UIData.java:938) at com.icesoft.faces.component.panelseries.UISeries.broadcast(UISeries.java:233) at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:475) at javax.faces.component.UIViewRoot.processDecodes(UIViewRoot.java:541) at com.sun.faces.lifecycle.ApplyRequestValuesPhase.execute(ApplyRequestValuesPhase.java:78) at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:100) at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) at com.icesoft.faces.webapp.http.core.JsfLifecycleExecutor.apply(JsfLifecycleExecutor.java:17) at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.renderCycle(ReceiveSendUpdates.java:94) at com.icesoft.faces.webapp.http.core.ReceiveSendUpdates.service(ReceiveSendUpdates.java:54) at com.icesoft.faces.webapp.http.core.RequestVerifier.service(RequestVerifier.java:26) at com.icesoft.faces.webapp.http.common.standard.PathDispatcherServer.service(PathDispatcherServer.java:24) at com.icesoft.faces.webapp.http.servlet.MainSessionBoundServlet.service(MainSessionBoundServlet.java:160) at com.icesoft.faces.webapp.http.servlet.SessionDispatcher$1.service(SessionDispatcher.java:38) at com.icesoft.faces.webapp.http.servlet.ThreadBlockingAdaptingServlet.service(ThreadBlockingAdaptingServlet.java:19) at com.icesoft.faces.webapp.http.servlet.EnvironmentAdaptingServlet.service(EnvironmentAdaptingServlet.java:63) at com.icesoft.faces.webapp.http.servlet.SessionDispatcher.service(SessionDispatcher.java:55) at com.icesoft.faces.webapp.http.servlet.SessionVerifier.service(SessionVerifier.java:19) at com.icesoft.faces.webapp.http.servlet.PathDispatcher.service(PathDispatcher.java:23) at com.icesoft.faces.webapp.http.servlet.MainServlet.service(MainServlet.java:91) at javax.servlet.http.HttpServlet.service(HttpServlet.java:717) at com.icesoft.faces.webapp.xmlhttp.BlockingServlet.service(BlockingServlet.java:56) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) ... 33 more 11:26:31,190 WARN [ExceptionFilter] exception root cause 11:26:31,190 WARN [ExceptionFilter] running exception handlers 11:26:31,206 ERROR [ExceptionFilter] could not roll back transaction java.util.EmptyStackException at java.util.Stack.peek(Stack.java:85) at java.util.Stack.pop(Stack.java:67) at org.jboss.seam.transaction.SeSynchronizations.afterTransactionRollback(SeSynchronizations.java:45) at org.jboss.seam.transaction.UTTransaction.rollback(UTTransaction.java:70) at org.jboss.seam.web.ExceptionFilter.rollbackTransactionIfNecessary(ExceptionFilter.java:159) at org.jboss.seam.web.ExceptionFilter.endWebRequestAfterException(ExceptionFilter.java:113) at org.jboss.seam.web.ExceptionFilter.doFilter(ExceptionFilter.java:70) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.web.RedirectFilter.doFilter(RedirectFilter.java:45) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:73) at org.jboss.seam.web.IdentityFilter.doFilter(IdentityFilter.java:40) at org.jboss.seam.servlet.SeamFilter$FilterChainImpl.doFilter(SeamFilter.java:69) at org.jboss.seam.servlet.SeamFilter.doFilter(SeamFilter.java:158) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:433) at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126) at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:601) at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447) at java.lang.Thread.run(Thread.java:619)
I have the correct icefaces-comps.jar in the EAR project which is then referenced in my EJB project. I have a strong feeling that this is a classpath issue, but I don't have any other type of DragEvent anywhere. If I take out the DragEvent parameter my method is called, but is worthless.
Please help! This is driving me crazy!!
