Re: Debugging with JDEE

Jeffrey Phillips:
	First thank your guidance. now i can debug HelloWorldServlet.java by listening debug port(i use JDEBug). But when i apply same configuation for my webwork application, setting breakpoint on Webwork's Action class, still can't suspend on the breakpoint. WHY?

	thanks.

		Peter


From: "Jeffrey Phillips" <[email protected]>
Subject: Re: Debugging with JDEE
Date: Sun, 25 Jun 2006 23:27:43 -0400

> 
> Port 80 is TCP port of your webserver...  You are using TCP port 9000
> in your command line for debugger to listen where you have this in
> your email:
> 
>     address=9000
> 
> The webserver daemon and debugger listeners must be different, or else
> you won't be able to test webserver and debug on the other.
> 
> See this for full debug options and descriptions:
> 
> http://java.sun.com/j2se/1.4.2/docs/guide/jpda/conninv.html
> 
> For j2ee debugging, I normally don't "start" the server  through jdee
> like you appear to be doing.  While you can do this, you instead might
> want to add the -Xdebug ... options to the start scripts JAVA_OPTS.
> Tomcat you can simply set two environment variables, then
> start in jpda mode.  For tomcat read this:
> 
> http://tomcat.apache.org/faq/development.html#rd
> 
> None of this really doesn't have much to do with JDEE, so it may be
> better to take off the mailing  list.
> 
> On 6/25/06, Peter Su <[email protected]> wrote:
> >
> > Jeffrey Phillips:
> >         This is complementarity of last mail. In HelloWorldServlet.java, i set (jde-run-vm-args "-Xdebug -Xrunjdwp\:transport\=dt_socket,server\=y,suspend\=n,address\=9000), and jde-run Bootstrap.java, but when i attach a port(my http port is default 80,by executing jde-bug-attach-local-host) ,it always say :
> >
> > *** Debugger Output for Process 80(1) ***
> >
> > Error: cannot attach to process on port 80 of local host.
> >  Reason: Exception during command execution: jde.debugger.JDEException: INTERNAL ERROR: an attempt was made at deregistering a valid debugger. The debugger must be shut down first..
> >
> >
> > so i execute jde-debug on Bootstrap.java directly, and setting breakpoint on HelloWorldServlet.java , it's works.
> > WHY? i guess that problem may be here.
> >
> >      thanks.
> >      Peter
> >
> >
>