I'm getting the following error when changing persistence.xml in my development directory, before running ant to copy the containing JAR to my deploy directory. If I stop and restart the server, then it works just fine! So this must have something to do with hot deploy not liking me changing the persistence.xml file. (I'm changing the persistence.xml file before I deploy, not in the deploy dir itself). What's the problem here, and how do I fix it so that I don't have to keep restarting the server? Thanks. run.client: | [java] Exception in thread "main" javax.ejb.EJBException: java.lang.IllegalArgumentException: Wrong target. class com.titan.travelagent.TravelAgentBean for public void com.titan.travelagent.TravelAgentBean.createCabin(com.titan.domain.Cabin) | [java] at org.jboss.ejb3.tx.Ejb3TxPolicy.handleExceptionInOurTx(Ejb3TxPolicy.java:69) | [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:83) | [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227) | [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) | [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) | [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828) | [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681) | [java] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358) | [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398) | [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239) | [java] Caused by: java.lang.IllegalArgumentException: Wrong target. class com.titan.travelagent.TravelAgentBean for public void com.titan.travelagent.TravelAgentBean.createCabin(com.titan.domain.Cabin) | [java] at org.jboss.aop.joinpoint.MethodInvocation.handleErrors(MethodInvocation.java:141) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:116) | [java] at org.jboss.ejb3.interceptor.InvocationContextImpl.proceed(InvocationContextImpl.java:166) | [java] at org.jboss.ejb3.interceptor.EJB3InterceptorsInterceptor.invoke(EJB3InterceptorsInterceptor.java:63) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.entity.TransactionScopedEntityManagerInterceptor.invoke(TransactionScopedEntityManagerInterceptor.java:54) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.AllowedOperationsInterceptor.invoke(AllowedOperationsInterceptor.java:47) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.tx.TxPolicy.invokeInOurTx(TxPolicy.java:79) | [java] at org.jboss.aspects.tx.TxInterceptor$Required.invoke(TxInterceptor.java:197) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.tx.TxPropagationInterceptor.invoke(TxPropagationInterceptor.java:76) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.stateless.StatelessInstanceInterceptor.invoke(StatelessInstanceInterceptor.java:62) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.security.AuthenticationInterceptor.invoke(AuthenticationInterceptor.java:78) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.ENCPropagationInterceptor.invoke(ENCPropagationInterceptor.java:47) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.asynchronous.AsynchronousInterceptor.invoke(AsynchronousInterceptor.java:106) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.stateless.StatelessContainer.dynamicInvoke(StatelessContainer.java:227) | [java] at org.jboss.aop.Dispatcher.invoke(Dispatcher.java:106) | [java] at org.jboss.aspects.remoting.AOPRemotingInvocationHandler.invoke(AOPRemotingInvocationHandler.java:82) | [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:828) | [java] at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:681) | [java] at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:358) | [java] at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:398) | [java] at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:239) | [java] at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:190) | [java] at org.jboss.remoting.Client.invoke(Client.java:525) | [java] at org.jboss.remoting.Client.invoke(Client.java:488) | [java] at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:55) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPropagationInterceptor.java:61) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityClientInterceptor.java:55) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:78) | [java] at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:101) | [java] at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteProxy.java:102) | [java] at $Proxy0.createCabin(Unknown Source) | [java] at com.titan.clients.Client.main(Client.java:30) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976448#... 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