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JDT simple change [message #1854040]

Fri, 29 July 2022 01:06

Eclipse User

Hi dear gurus. I want to make changes in JDT code. I downloaded everything from the https://github.com/orgs/eclipse-jdt/repositories, compiled it, but when I put a breakpoint, it stops not in my code, but in the jar file that is a host and not a target.

How can I make simple change to see my changes in target platform?

Attachment: launcher 2022-07-29 14-03-59.png
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[Updated on: Fri, 29 July 2022 06:09] by Moderator

Re: JDT simple change [message #1854042 is a reply to message #1854040]

Fri, 29 July 2022 03:13

Eclipse User

From within the IDE where you have the JDT code you need to launch a new Eclipse Application, a so-called self-hosted launch, and that will use the plugin in the workspace such that you can debug them.

Re: JDT simple change [message #1854046 is a reply to message #1854042]

Fri, 29 July 2022 06:15

Eclipse User

Ed Merks wrote on Fri, 29 July 2022 07:13

From within the IDE where you have the JDT code you need to launch a new Eclipse Application, a so-called self-hosted launch, and that will use the plugin in the workspace such that you can debug them.

Thank you Ed
I added the screenshot where is visible that I add launcher as "Eclipse Application". I also try to play with "Run a product", try different applications from the combo box. But no difference. In top of screen visible that instead of stop on my breakpoint it stops in appropriate *.jar file.

Below I also attached the other tabs of my launcher.

index.php/fa/42354/0/

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Attachment: launcher 2022-07-29 14-27-11.png
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[Updated on: Fri, 29 July 2022 06:36] by Moderator

Re: JDT simple change [message #1854052 is a reply to message #1854046]

Fri, 29 July 2022 09:22

Eclipse User

Sorry, I didn't see your picture the first time. It doesn't look like you really imported the projects as projects but rather imported the entire Maven folder as a single project. You won't be able to launch from that form.

Better you use the automated setup to create the development environment such that the projects are properly imported individually:

https://www.eclipse.org/setups/installer/?url=https://raw.githubusercontent.com/eclipse-jdt/eclipse.jdt/master/org.eclipse.jdt.releng/JDTConfiguration.setup&show=true

Re: JDT simple change [message #1854138 is a reply to message #1854052]

Wed, 03 August 2022 03:01

Eclipse User

Thank you Ed with your help everything works now.

[Updated on: Wed, 03 August 2022 03:01] by Moderator

Re: JDT simple change [message #1854139 is a reply to message #1854052]

Wed, 03 August 2022 03:32

Eclipse User

Dear Ed. Do you know the same place for CDT, where I can get sources and make my changes on the CDT itself, as I can do with JDT? Because I cant find the same place for CDT. And when I select CDT in installer manually/JDT checkboxes was checked automatically/ it gives error during installation.

index.php/fa/42369/0/

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Re: JDT simple change [message #1854141 is a reply to message #1854139]

Wed, 03 August 2022 04:50

Eclipse User

Probably you had this error:

ERROR: org.eclipse.equinox.p2.director code=0 Missing requirement: artificial_root 1.0.0.v1659515430790 requires 'org.eclipse.equinox.p2.iu; org.eclipse.pde.api.tools.ee.feature.feature.group 0.0.0' but it could not be found

That feature has been removed in the 4.25 (2022-09) stream. CDT needs to remove it from their setup to fix this problem; I'll try to help fix it for them...

To avoid the problem for now, I suggest choosing the Committers product (not the Eclipse SDK product) and picking the 2022-06 version on the first page of the installer. That worked for me just now; mostly, I did have timeouts resolving the target platform and and to do Help -> Perform Setup Tasks... a second time to get it to work. Then I still have timeouts cloning https://git.eclipse.org/r/cdt/org.eclipse.cdt but I tried ssh://emerks@git.eclipse.org:29418/cdt/org.eclipse.cdt which finally worked, but you need to set up Gerrit for that:

https://wiki.eclipse.org/Gerrit

Re: JDT simple change [message #1854151 is a reply to message #1854141]

Wed, 03 August 2022 10:54

Eclipse User

Dear Ed, I installed Commiters 2022-06 (before that was 2022-03) version as you suggested. I also have timeouts on cloning by https and I have some difficulties with Gerrit set up. As I have no bug to fix for CDT. I just want to investigate some rename dialog on CDT. By the way I always clone directly from command line git master branch (if I should take an other version please correct me).
But it gives me 2000+ errors
index.php/fa/42373/0/

If I skip them all and try to run anyway. The target eclipse(CDT) does not allow to create some project.
index.php/fa/42374/0/

Thank you

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Re: JDT simple change [message #1854154 is a reply to message #1854151]

Wed, 03 August 2022 14:33

Eclipse User

The setups are there to eliminate the "sea of red" that you typically get from just cloning and just importing projects and hoping for the best. BTW, I opened this bug to contribute fixes to the CDT.setup, but they are in the processing migrating the project to github:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=580505

Re: JDT simple change [message #1854430 is a reply to message #1854154]

Thu, 18 August 2022 08:03

Eclipse User

Thank you Ed. Your advices help me a lot.

Re: JDT simple change [message #1854435 is a reply to message #1854430]

Thu, 18 August 2022 09:32

Eclipse User

BTW, the migration to Github is complete now and they have a contributing section:

https://github.com/eclipse-cdt/cdt/blob/main/CONTRIBUTING.md

With a simple-to-use setup that does work now:

https://www.eclipse.org/setups/installer/?url=https://raw.githubusercontent.com/eclipse-cdt/cdt/main/releng/CDTConfiguration.setup&show=true

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