"jaikiran" wrote : | Strange. I wasn't aware that the positioning matters. I still find it hard to believe that this was the reason why it was failing. | OK, i now know why you were seeing the exception earlier. It has got nothing to do with the order in which you pass the "server" and "address" parameters. Here's what your parameters were when you were seeing the exception: "tttito" wrote : | | JAVA_OPTS: -Xdebug -Xnoagent -Xrunjdwp:transport=dt_socket,address=8787, server=y, suspend=n -Dprogram.name=run.bat -server -Xms128m -Xmx512m -Dsun.rmi.dgc.client.gcInterval=3600000 -Dsun.rmi.dgc.server.gcInterval=3600000 -Djmx.invoke.getters=true Observer closely, there's a space after the comma following 8787 (before the server parameter). To reproduce this issue on my local setup (which was working fine for debugging so far), i added a space between the comma separated parameters, and i too started seeing the same exception on startup anonymous wrote : ERROR: transport error 202: connect failed: Connection refused ["transport.c",L41] | ERROR: JDWP Transport dt_socket failed to initialize, TRANSPORT_INIT(510) ["debugInit.c",L500] | JDWP exit error JVMTI_ERROR_INTERNAL(113): No transports initializedFATAL ERROR in native method: JDWP No transports initializ | ed, jvmtiError=JVMTI_ERROR_INTERNAL(113) | Press any key to continue . . . | Once i removed the space between the comma separated parameters, and restarted the server, everything started smoothly. There should not be any space between before or after (any of) those comma separated parameters. So, if you go back to the original order that was present in the run.bat file and remove those spaces, i bet you too will get it working. This is how the JDPA options line should look like in your run.bat file: set JAVA_OPTS=-Xdebug -Xrunjdwp:transport=dt_socket,address=8787,server=y,suspend=y %JAVA_OPTS% View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4102629#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...