It looks like you're very close to getting it working.

So you have two terminals open -- one running the engine, and one running the debug mvn command (make gwt-debug DEBUG_MODULE="webadmin" DEV_EXTRA_BUILD_FLAGS_GWT_DEFAULTS="-Dgwt.userAgent=gecko1_8")

It looks like the 404 is happening because the engine is not actually running / serving the UI.

What is the full URL in your browser? It's covered up in your screenshot.

Remove the ?gwt... part from your URL. Any luck? Restart engine, don't bother with debugging yet. Can you get to the UI?

Once you can get the UI back, then you can try to debug again. Open that second terminal again, make gwt-debug DEBUG_MODULE="webadmin" DEV_EXTRA_BUILD_FLAGS_GWT_DEFAULTS="-Dgwt.userAgent=gecko1_8"

Then, using Firefox 26 [1], open the UI. Log in. Once that works, start the debug session in IDEA, and then add the gwt.codesvr=127.0.0.1:9997 back onto the URL and hit enter.

Hope this helps.

Greg

[1] https://ftp.mozilla.org/pub/firefox/releases/26.0/

On Thu, Apr 27, 2017 at 3:54 AM, yuening <ynliu@linx-info.com> wrote:

hi, everyone

I am newbie for ovirt-engine development and maven, I meet some questions about setup ovirt-engine development, which had blocked me for almost ten days；I hope to get your help or some tips

the following description is the process of setup ovirt-engine development:

After installing centos 7（CentOS-7-x86_64-DVD-1511.iso）with Minimal installation, then refer to

    http://www.ovirt.org/develop/developer-guide/engine/engine-development-environment/   （I use ovirt-engine 4.1 version）

I can compile and run ovirt-engine on cenots 7, ovirt-engine web page can be accessed normally, Moreover, after installing gnome desktop on centos7 and setting up java IDE development （I use Intellij idea-IC-171.4073.35 community edition）, I met some questions about using Intellij idea IDE to debug ovirt-engine, the following is my problem description:

I refer the following two links to build the developement environment

   https://www.ovirt.org/develop/developer-guide/engine/building/ide/

https://www.ovirt.org/develop/developer-guide/debugfrontend/

firstly, at ovirt-engine source directory, after mading the following operation,   I can attach to port 8000 under intellij idea IDE environments, but debug can not be started

    #make gwt-debug DEBUG_MODULE="webadmin" DEV_EXTRA_BUILD_FLAGS_GWT_DEFAULTS="-Dgwt.userAgent=gecko1_8" （the picture b is output from the command）

the second picture below is a snapshot for Intellij idea 、GWT module and Web browser (please notice the output "no Server is set! Skipping exploding war file ..." in the picture above)

my questions are that why does not the web page be open? it seem as if ovirt-engine/webadmin/WebAdmin.html does not be made, but I do not know how to get the WebAdmin.html by maven command line, Could you tell me that what is key point ?

In addition. I had ever attempt to 'mvn gwt:run' , but it did not work, output is as following:

it tell me that the 'runTarget' is missing, but I don not know how to get my 'runTarget'
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Greg Sheremeta, MBA
Sr. Software Engineer

Red Hat, Inc.
gshereme@redhat.com