With JBoss 4.0.5 GA running under Windows 2003 server, I am using a ClientLoginModule on the client side and an LDAP provider (Active Directory) on the server side. When the client login password is wrong, the server report the error correctly in the server log. 2007-05-11 14:56:06,828 DEBUG [org.jboss.security.auth.spi.LdapExtLoginModule] Bad password for username=foo javax.naming.NamingException: Search of baseDN(CN=Users,DC=paperwork2,DC=eng,DC=filenet,DC=com) found no matches at org.jboss.security.auth.spi.LdapExtLoginModule.bindDNAuthentication(LdapExtLoginModule.java:379) at org.jboss.security.auth.spi.LdapExtLoginModule.createLdapInitContext(LdapExtLoginModule.java:336) at org.jboss.security.auth.spi.LdapExtLoginModule.validatePassword(LdapExtLoginModule.java:229) at org.jboss.security.auth.spi.UsernamePasswordLoginModule.login(UsernamePasswordLoginModule.java:210) However, the client side gets the following error. Caused by: java.io.NotSerializableException: com.sun.jndi.ldap.LdapCtx at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1054) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332) at java.io.ObjectOutputStream.defaultWriteObject(ObjectOutputStream.java:367) at java.lang.Throwable.writeObject(Throwable.java:648) at sun.reflect.GeneratedMethodAccessor148.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:324) at java.io.ObjectStreamClass.invokeWriteObject(ObjectStreamClass.java:809) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1296) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.defaultWriteFields(ObjectOutputStream.java:1332) at java.io.ObjectOutputStream.writeSerialData(ObjectOutputStream.java:1304) at java.io.ObjectOutputStream.writeOrdinaryObject(ObjectOutputStream.java:1247) at java.io.ObjectOutputStream.writeObject0(ObjectOutputStream.java:1052) at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:278) at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:299) at sun.rmi.transport.Transport$1.run(Transport.java:148) at java.security.AccessController.doPrivileged(Native Method) at sun.rmi.transport.Transport.serviceCall(Transport.java:144) at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:460) at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:701) at java.lang.Thread.run(Thread.java:534) Is there a way to propagate the bad password error to the client from the server (EJB container)? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4046307#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...