Could not dereference object on Remote Server
Hi!
I'm a newby in ejb3.0 and startet with the tutorials.
The first step was testing the Stateful-ShoppingCart-Example.
I used the JBoss4.0.4 (ejb3-installer) on a local machine - the same machine from where i started the client-app. >> everything works!
The next step was using an 4.0.4-JBoss on an remote Server (Ubuntu 5.10). This Server i used already with jboss4.0.3 and ejbs2.1 and j2ee works with him.
When I deployed the ShoppingCart.jar and tryed to run the Client from an remote win2000-pc i have this error:
Exception in thread "main" javax.naming.NamingException: Could not dereference object [Root exception is org.jboss.remoting.CannotConnectException: Can not get connection to server. Problem establishing socket connection.] at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1150) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:705) at org.jnp.interfaces.NamingContext.lookup(NamingContext.java:587) at javax.naming.InitialContext.lookup(Unknown Source) at org.jboss.tutorial.stateful.client.Client.main(Client.java:53) Caused by: org.jboss.remoting.CannotConnectException: Can not get connection to server. Problem establishing socket connection. at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:267) at org.jboss.remoting.RemoteClientInvoker.invoke(RemoteClientInvoker.java:143) at org.jboss.remoting.Client.invoke(Client.java:525) at org.jboss.remoting.Client.invoke(Client.java:488) at org.jboss.aspects.remoting.InvokeRemoteInterceptor.invoke(InvokeRemoteInterceptor.java:41) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.remoting.IsLocalInterceptor.invoke(IsLocalInterceptor.java:34) at org.jboss.aop.joinpoint.MethodInvocation.invokeNext(MethodInvocation.java:88) at org.jboss.aspects.remoting.PojiProxy.invoke(PojiProxy.java:46) at $Proxy0.createProxy(Unknown Source) at org.jboss.ejb3.JndiProxyFactory.getObjectInstance(JndiProxyFactory.java:52) at javax.naming.spi.NamingManager.getObjectInstance(Unknown Source) at org.jnp.interfaces.NamingContext.getObjectInstance(NamingContext.java:1125) at org.jnp.interfaces.NamingContext.getObjectInstanceWrapFailure(NamingContext.java:1142) ... 4 more 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 java.net.Socket.connect(Unknown Source) at java.net.Socket.<init>(Unknown Source) at java.net.Socket.<init>(Unknown Source) at org.jboss.remoting.transport.socket.SocketClientInvoker.createSocket(SocketClientInvoker.java:535) at org.jboss.remoting.transport.socket.SocketClientInvoker.getConnection(SocketClientInvoker.java:471) at org.jboss.remoting.transport.socket.SocketClientInvoker.transport(SocketClientInvoker.java:263) ... 17 more
In the Demo-Code I just made this changes:
jndi.properties java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory java.naming.factory.url.pkgs=org.jboss.naming:org.jnp.interfaces java.naming.provider.url=jnp://192.168.1.2:1099
The run.sh was modified, too:
while [ $STATUS -eq 10 ] do # Execute the JVM "$JAVA" $JAVA_OPTS \ -Djava.endorsed.dirs="$JBOSS_ENDORSED_DIRS" \ -Djava.rmi.server.hostname=192.168.1.2 \ -Djava.rmi.server.useLocalHostname=false \ -classpath "$JBOSS_CLASSPATH" \ org.jboss.Main "$@" STATUS=$? # if it doesn't work, you may want to take a look at this: # http://developer.java.sun.com/developer/bugParade/bugs/4465334.html done
My Linux-Server is already working with jboss4.0.3 and i can access the 2.1-beans via the clientapps on my win2000pc - the network-connection and the firewall-configuration must be ok.
Where is the(my) problem?
Greetings
Martin