Using an EJB from an remote app client does not work

[hauptlorenz]

Hi,

I've created an EJB with both an local and remote-interface and deployed it
(stateless session bean).

Now I want to use it from an remote application client (swing app).
I've using this jndi.properties-file (which is used, I see in the exceptions):

java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.factory.url.pkgs=org.jboss.naming.client
java.naming.provider.url=jnp://132.180.60.3:1099
j2ee.clientName=sImplex-app-client

I'm using the following java code to use the EJB. The problem:
if the client is running on the same machine as the jboss server it is running. If it is running on an different client I get only exceptions.

What could be the problem?

Thank you very much,
Frank

Properties properties = new Properties();

 Context context;
 try {
 context = new InitialContext();
 userRemote myUser = (userRemote) context.lookup(userBean.RemoteJNDIName);
 String a = myUser.getUser();
 jTextPane1.setText(jTextPane1.getText()+"\n"+a);
 } catch (NamingException e) {
 e.printStackTrace();
 /* I rethrow it as runtimeexception as there is really no need to continue if an exception happens and I
 * do not want to catch it everywhere.
 */
 throw new RuntimeException(e);
 }

[hauptlorenz]

Hi,

I found out, that the JBOSS Server must be started with the -b 0.0.0.0
param to enable the server on all interfaces.

I get now these Exceptions:
C:\Dokumente und Einstellungen\haupt_f\Desktop\dist\build>java -jar sImplex-app-
client.jar
Exception in thread "AWT-EventQueue-0" org.jboss.remoting.CannotConnectException
: Can not get connection to server. Problem establishing socket connection for I
nvokerLocator [socket://127.0.0.1:3873/]
at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transpor
t(MicroSocketClientInvoker.java:530)
at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientI
nvoker.java:122)
at org.jboss.remoting.Client.invoke(Client.java:1550)
at org.jboss.remoting.Client.invoke(Client.java:530)
at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemot
eInterceptor.java:62)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPr
opagationInterceptor.java:61)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityC
lientInterceptor.java:53)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.
java:72)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteP
roxy.java:103)
at $Proxy0.getUser(Unknown Source)
at org.simplex.ui.main.mainFrame.onStartButton(mainFrame.java:88)
at org.simplex.ui.main.mainFrame.access$000(mainFrame.java:18)
at org.simplex.ui.main.mainFrame$1.mouseClicked(mainFrame.java:58)
at java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)
Caused by: java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.SocksSocketImpl.connect(Unknown Source)
at java.net.Socket.connect(Unknown Source)
at org.jboss.remoting.transport.socket.SocketClientInvoker.createSocket(
SocketClientInvoker.java:187)
at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.getConne
ction(MicroSocketClientInvoker.java:801)
at org.jboss.remoting.transport.socket.MicroSocketClientInvoker.transpor
t(MicroSocketClientInvoker.java:526)
at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientI
nvoker.java:122)
at org.jboss.remoting.Client.invoke(Client.java:1550)
at org.jboss.remoting.Client.invoke(Client.java:530)
at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemot
eInterceptor.java:62)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.aspects.tx.ClientTxPropagationInterceptor.invoke(ClientTxPr
opagationInterceptor.java:61)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.aspects.security.SecurityClientInterceptor.invoke(SecurityC
lientInterceptor.java:53)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.ejb3.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.
java:72)
at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.
java:101)
at org.jboss.ejb3.stateless.StatelessRemoteProxy.invoke(StatelessRemoteP
roxy.java:103)
at $Proxy0.getUser(Unknown Source)
at org.simplex.ui.main.mainFrame.onStartButton(mainFrame.java:88)
at org.simplex.ui.main.mainFrame.access$000(mainFrame.java:18)
at org.simplex.ui.main.mainFrame$1.mouseClicked(mainFrame.java:58)
at java.awt.AWTEventMulticaster.mouseClicked(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)

[alrubinger]

Looks like the client is obtaining the Proxy from the remote server, but the Proxy is attempting to invoke upon localhost (127.0.0.1).

...Proxy Obtained:

at $Proxy0.getUser(Unknown Source)

...Invoking on localhost:

Can not get connection to server. Problem establishing socket connection for InvokerLocator [socket://127.0.0.1:3873/]

I wonder if by manually setting "-b" at startup, you instruct JBoss to have the Property "jboss.bind.address" set to localhost, which is where the InvokerLocator will bind to. Might be best to set -b to 132.180.60.3 if possible, or look at your machine's IP Configuration in /etc/hosts and remove this switch alltogether..

S,
ALR