6:20 p.m.
I have an java ee application with a remote business interface:
public interface RegisterRemote {
| public void createUser(User user);
| public User findUser(long id);
| }
and a stateless session bean:
@javax.ejb.Stateless
| @javax.ejb.Remote(RegisterRemote.class)
| public class RegisterBean implements RegisterRemote {
| @javax.persistence.PersistenceContext(unitName="carDatabase")
| private javax.persistence.EntityManager em;
|
| public void createUser(User user) {
| em.persist(user);
| }
|
| public User findUser(long id) {
| return em.find(User.class, id);
| }
| }
and my client looks so:
public class Client {
| static public void main(String[] args) {
| try {
| Context jndiContext = getInitialContext();
| Object ref = jndiContext.lookup("RegisterBean/remote");
| RegisterRemote dao = (RegisterRemote)
| PortableRemoteObject.narrow(ref, RegisterRemote.class);
|
| Customer customer_1 = new Customer();
| customer_1.setFirstName("Francis");
| customer_1.setLastName("Pouatcha");
| customer_1.setUsername("francis.pouatcha");
| customer_1.setPassword("franc123Poutacha");
| customer_1.setEmail("fancis.pouatcha(a)gmail.de");
| dao.createUser(customer_1);
|
| Customer customer_2 = (Customer) dao.findUser(1);
| System.out.println(customer_2.getFirstName());
| System.out.println(customer_2.getLastName());
| System.out.println(customer_2.getUsername());
| System.out.println(customer_2.getPassword());
| System.out.println(customer_2.getEmail());
|
| } catch ( NamingException ne ) {
| ne.printStackTrace();
| }
| }
| private static Context getInitialContext() throws NamingException {
| java.util.Properties properties = new java.util.Properties();
| properties.put(Context.INITIAL_CONTEXT_FACTORY,
"org.jnp.interfaces.NamingContextFactory");
| properties.put(Context.URL_PKG_PREFIXES,
"org.jboss.naming:org.jnp.interfaces");
| properties.put(Context.PROVIDER_URL, "jnp://localhost:1099");
| return new javax.naming.InitialContext(properties);
| }
| }
and then when I run this client for the first time this do all things fine. But when I
change the annotion of the session bean to @javax.ejb.Stateful then I get this error:
[java] Exception in thread "main" javax.ejb.EJBException:
java.lang.IllegalArgumentException: Wrong target. class de.mathema.slsb.RegisterBean for
public void de.mathema.slsb.RegisterBean.createUser(de.mathema.domain.User)
| [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
de.mathema.slsb.RegisterBean for public void
de.mathema.slsb.RegisterBean.createUser(de.mathema.domain.User)
| [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.createUser(Unknown Source)
| [java] at de.mathema.clients.Client.main(Client.java:40)
But when I restart the server and then run my client for the second time this work fine.
Can somebody tells me what is here the problem, because I know that jboss as is a
hot-deployment server that can inspect that something have been changed.
Thanks.
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