Thursday, June 27, 2024

Re: is it possible to debug GWT projects (breakpoints, step through code etc) ?

Did you open the debug view ? iirc in eclipse you need to


On Thu, Jun 27, 2024 at 6:15 PM, 'Daniel Webb' via GWT Users
<google-web-toolkit@googlegroups.com> wrote:
Hi,

Can anyone help me get remote jdwp server debugging in Eclipse working? I seem to be able to get a server running but it won't halt on breakpoints.

I run as.. "Maven Build" with goals of 'clean install appengine:run' and vm arguments of '-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=8000'
run debug.png
run debug 2.png

The Console says "Listening for transport dt_socket at address: 8000"

Then I "Debug as..." "Remote Java Application"...
remote debug 1.png

And the console starts up again with the 'clean install appengine:run' finishing up with the usual:
Started NetworkTrafficSelectChannelConnector {HTTP/1.1, (http/1.1)}{localhost:8080}

At which point I can browse to http://localhost:8080 but none of my breakpoints will trigger.

Please, what am I doing wrong? I've not done java remote debugging before :-(
Regards
Daniel


On Thursday 27 June 2024 at 16:21:17 UTC+1 Daniel Webb wrote:
Thanks Ralph, So it's source map debugging in chrome for the client side, jdwp remote debugging for the server side.
  
On Tuesday 25 June 2024 at 14:09:20 UTC+1 Ralph Fiergolla wrote:
Hi! Unless you want to invest time and effort in getting eclipse plugins up and running, I would suggest using your browser's development tools (Ctrl+Shift+I in Chrome/Edge) to debug the client side. Thanks to source maps it will show your JAVA source code when debugging. 
To debug the server side, you need to start your server with "-Xdebug -Xrunjdwp:server=y,transport=dt_socket,address=8000,suspend=n" and create a debug configuration to connect to port 8000 in Eclipse.
Good luck
Ralph

On Mon, Jun 24, 2024 at 11:19 AM 'Daniel Webb' via GWT Users <google-we...@googlegroups.com> wrote:
Hi, 
Is it possible to debug GWT projects - setting breakpoints and stepping through code? This would be server and/or client debugging.

We've just had our internal GWT based app updated and it now uses maven to run (clean install appengine:run). The eclipse plugin based debugging technique that I used to use no longer seems to work.

Thanks for any advice, I really like GWT but I'm lost as to how it all works!
Daniel

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