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JDT simple change [message #1854040]

Fri, 29 July 2022 05:06

Arsen Davtyan

Messages: 17
Registered: May 2022

Junior Member

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
(Size: 420.42KB, Downloaded 191 times)

[Updated on: Fri, 29 July 2022 10:09]

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

Fri, 29 July 2022 07:13

Ed Merks

Messages: 32660
Registered: July 2009

Senior Member

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.

Ed Merks
Professional Support: https://www.macromodeling.com/

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

Fri, 29 July 2022 10:15

Arsen Davtyan

Messages: 17
Registered: May 2022

Junior Member

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/

Attachment: launcher 2022-07-29 14-26-44.png
(Size: 126.21KB, Downloaded 173 times)
Attachment: launcher 2022-07-29 14-27-11.png
(Size: 126.26KB, Downloaded 169 times)

[Updated on: Fri, 29 July 2022 10:36]

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

Fri, 29 July 2022 13:22

Ed Merks

Messages: 32660
Registered: July 2009

Senior Member

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

Ed Merks
Professional Support: https://www.macromodeling.com/

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

Wed, 03 August 2022 07:01

Arsen Davtyan

Messages: 17
Registered: May 2022

Junior Member

Thank you Ed with your help everything works now.

[Updated on: Wed, 03 August 2022 07:01]

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

Wed, 03 August 2022 07:32

Arsen Davtyan

Messages: 17
Registered: May 2022

Junior Member

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/

Attachment: Screenshot from 2022-08-03 11-25-44.png
(Size: 73.64KB, Downloaded 156 times)
Attachment: Screenshot from 2022-08-03 11-26-39.png
(Size: 146.81KB, Downloaded 148 times)

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

Wed, 03 August 2022 08:50

Ed Merks

Messages: 32660
Registered: July 2009

Senior Member

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

Ed Merks
Professional Support: https://www.macromodeling.com/

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

Wed, 03 August 2022 14:54

Arsen Davtyan

Messages: 17
Registered: May 2022

Junior Member

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

Attachment: Screenshot from 2022-08-03 18-45-37.png
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Attachment: Screenshot from 2022-08-03 18-50-37.png
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Re: JDT simple change [message #1854154 is a reply to message #1854151]

Wed, 03 August 2022 18:33

Ed Merks

Messages: 32660
Registered: July 2009

Senior Member

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

Ed Merks
Professional Support: https://www.macromodeling.com/

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