Thanks a lot for the reply. I have a few comments inserted below.
Paul Kinnucan wrote:
> At 01:11 PM 11/15/00 -0800, Zhou Ye wrote:
> >
> >Hi all,
> >
> >I am a new comer of JDE and am excited to have a Java environment for
> >emacs. The feature that most interest me is the ability to debug Java
> >programs within Emacs.
> >
> >I am using JDK1.3 and JDE225(elib 1.0, semantic131, speedbar0.13a).
> >I've just got them installed and working to some extend. I do encounter
> >some issues and would like to ask for your help/clarification:
> >
> >A) Using JDebug in general.
> >
> >I can't find an interactive environment for me to issue(by typing) debug
> >commands such as next, cont (like the way I use gdb for example). Did I
> >miss something?
> >
>
> No. You did not miss anything. JDEbug was designed to be run from the Emacs
> desktop, and consequently take advantage of amenities that Emacs offers
> that a command window does not, such as menus, keybindings, and minibuffer
> commands with completion.
>
That's a bit of disapointing to me. I am really fond of the command line
interactive way to debug. Menus have never been my favorite; if there's a
choice I'd prefer alias over keybindings; and there's not too many commands on
debugging that requires completion(unlike all possible files under a directory,
which is unlimited in number and completion helps a great deal).
Please don't get me wrong. JDE is an excellent product. I am merely expressing
my view and a wish list.
>
> >B) Using JDebug to attach a process.
> >
> >I can issue the commands to attach to an app I ran outside of
> >emacs(shmem, address=jdebug) and attach to it in JDebug, see JDebug
> >message below:
> >
> >
> >_______________________
> >
> >*** Debugger Output for Process jdebug(4) ***
> >
> >Attached to process jdebug.
> >Attached VM (shmem) Java Debug Interface (Reference Implementation)
> >version 1.3
> >Java Debug Wire Protocol (Reference Implementation) version 1.0
> >JVM Debug Interface version 1.0
> >JVM version 1.3.0 (Java HotSpot(TM) Client VM, interpreted mode)
> >
> >_______________________
> >
> >At this point, nothing is happening in the emacs. I clicked on
> >"JDebug->Continue" the following shows:
> >
> >_______________________
> >
> >Running jdebug
> >
> >_______________________
> >
> >
> >And again nothing seems to be happening. I can't figure out what the
> >problem is. I am also not sure if I use the name jdebug correctly.
> >(after I clicked on attach->shared memory, the minibuffer prompts for
> >"process name" and that's where I entered "jdebug") I tried to use other
> >names but did not seem to make any difference.
> >
>
> You have to set a breakpoint somewhere and then prod the application to run
> to the breakpoint. You can then start stepping.
>
Thanks! I got it figured out.
>
> >c) Using jdb
> >
> >I then tried to use jdb. I was able to set it up and debug an app
> >launched by jdb. Stepping thru the code also seemed to work fine.
> >
> >However, I can 't figure out how to make it to do attach. I tried a few
> >things but can't seem to make JDE to accept my "-attach" correctly.
> >
> >Is there a way to use jdb for attaching?
> >
>
> The JDE does not really support attaching jdb to an existing process. It's
> possible to do it by setting the right debug options. You have to turn off
> some things and turn on others. I've forgotten the details of how to do it.
>
> - Paul
jdb does offer the command window feature. Any plan in future support of it?
thanks,
Joe
