[jboss-remoting-issues] [JBoss JIRA] (JBREM-1302) Can't invoke remote object if server bind address is 0.0.0.0

[Sergey Chernov (Created) (JIRA)]

Can't invoke remote object if server bind address is 0.0.0.0
------------------------------------------------------------

                 Key: JBREM-1302
                 URL: https://issues.jboss.org/browse/JBREM-1302
             Project: JBoss Remoting
          Issue Type: Bug
      Security Level: Public (Everyone can see)
          Components: transport
    Affects Versions: 2.5.4.SP2
         Environment: Jboss 5.1.0 jdk 1.6 jboss remoting 2.5.4.SP2 
            Reporter: Sergey Chernov


When jboss bind address is set to `0.0.0.0` remote client gets exception while trying to invoke remote object's method: 
java.rmi.ConnectException: Connection refused to host: lx4-schernov.nn.five9.com; nested exception is: 
	java.net.ConnectException: Connection refused: connect
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:601)
	at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:198)
	at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
	at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:110)
	at org.jboss.remoting.transport.rmi.RMIServerInvoker_Stub.transport(Unknown Source)
	at org.jboss.remoting.transport.rmi.RMIClientInvoker.callTransport(RMIClientInvoker.java:648)
	at org.jboss.remoting.transport.rmi.RMIClientInvoker.access$100(RMIClientInvoker.java:78)
	at org.jboss.remoting.transport.rmi.RMIClientInvoker$1.run(RMIClientInvoker.java:402)
	at org.jboss.util.threadpool.RunnableTaskWrapper.run(RunnableTaskWrapper.java:147)
	at org.jboss.util.threadpool.BasicThreadPool.executeOnThread(BasicThreadPool.java:473)
	at org.jboss.util.threadpool.BasicThreadPool.runTaskWrapper(BasicThreadPool.java:201)
	at org.jboss.remoting.transport.rmi.RMIClientInvoker.transport(RMIClientInvoker.java:420)
	at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:169)
	at org.jboss.remoting.Client.invoke(Client.java:2070)
	at org.jboss.remoting.Client.invoke(Client.java:879)
	at org.jboss.remoting.Client.invoke(Client.java:867)
	at org.jboss.remoting.transporter.TransporterClient.invoke(TransporterClient.java:479)
	at $Proxy0.getMySumHost(Unknown Source)
	at test.Main.main(Main.java:45)
Caused by: java.net.ConnectException: Connection refused: connect
	at java.net.PlainSocketImpl.socketConnect(Native Method)
	at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
	at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:193)
	at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
	at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
	at java.net.Socket.connect(Socket.java:525)
	at java.net.Socket.connect(Socket.java:475)
	at java.net.Socket.<init>(Socket.java:372)
	at java.net.Socket.<init>(Socket.java:186)
	at javax.net.DefaultSocketFactory.createSocket(SocketFactory.java:206)
	at org.jboss.remoting.transport.rmi.RemotingRMIClientSocketFactory.createSocketPrivate(RemotingRMIClientSocketFactory.java:333)
	at org.jboss.remoting.transport.rmi.RemotingRMIClientSocketFactory.createSocket(RemotingRMIClientSocketFactory.java:210)
	at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:595)
	... 18 more


It happens because RemotingRMIClientSocketFactory had been created with wrong ('0.0.0.0') host name which becomes effective host while creating socket: 
log: 
328 [main] TRACE org.jboss.remoting.transport.rmi.RemotingRMIClientSocketFactory  - host: lx4-schernov.nn.five9.com, effective host: 0.0.0.0, port: 47952

source: 
 public Socket createSocket(String host, final int port) throws IOException
  176      {
  ...
  181         final String effectiveHost = hostName != null ? hostName : host;


While creating factory it should be checked, that host name is not broadcast or localhost address, to make client's locatorUri mandatory for such cases. 

Client source code: 
        String address = "remote.host.com";

        Properties props = new Properties();
        props.put(InitialContext.INITIAL_CONTEXT_FACTORY, "org.jnp.interfaces.NamingContextFactory");
        props.put(InitialContext.PROVIDER_URL, "jnp://" + address + ":1099");
        props.put(InitialContext.URL_PKG_PREFIXES, "org.jboss.naming:org.jnp.interfaces");

        InitialContext context = new InitialContext(props);

        Object tmp = context.lookup("remote/subsystem/Object");


        ObjectInf object = (ObjectInf) tmp;
  
        object.doJob(); // here exception it thrown



--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.jboss.org/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira