Hi Friends,<div>I am new to Ros an rosjava and tying to do something on my PC.</div><div><div>I am not sure its correct or not.</div><div><br></div><div>I am using rosjava on my Linux (ubuntu 10.4). </div><div>Currently I am trying to run rosjava alone. and trying to use Talker and Listener example available in source.</div>

<div><br></div><div>I am starting Ros core and talker and listener by following commands</div><div><br></div><div>RosCore --</div><div>rosCore = new RosCore(11311);</div><div><div>nodeRunner = NodeRunner.createDefault();</div>

<div>nodeRunner.run(rosCore, Lists.newArrayList(&quot;RosCore&quot;, &quot;__master:=<a href="http://localhost:11311">http://localhost:11311</a>&quot;));</div><div><br></div><div>Talker</div><div> nodeRunner.run(new Talker(),Lists.newArrayList(&quot;talker&quot;, &quot;__ip:=127.0.0.1&quot;, &quot;__master:=<a href="http://localhost:11311">http://localhost:11311</a>&quot;));</div>

</div><div><br></div><div>Listener</div><div><meta http-equiv="content-type" content="text/html; charset=utf-8"> nodeRunner.run(new Listener(),Lists.newArrayList(&quot;listener&quot;, &quot;__ip:=127.0.0.1&quot;, &quot;__master:=<a href="http://localhost:11311">http://localhost:11311</a>&quot;));</div>

<div><br></div><div>Publisher and subscriber are not able to communicate. AndI am trying to understand why..</div><div>I found that value of xmlRpcPort is 0 and not changed anywhere.</div><div><br></div><div>Am I doing right thing by running rosjava alone?</div>

<div>Is xmlRpcPort port need to set? whats is it for? I suppose it might be for remote communication with RcpCore (or MasterServer)</div><div><br></div><div>in my case rosroot and ros package paths are empty...is that ok?</div>

<div><br></div><div>Thanks and Regards<br>Abhishek Verma<br>
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