The Adobe AEM Developer tools are buggy, and they lack Adobe’s support. The Eclipse plugin featured at this URL has documented errors with installation and operation. When I brought these issues to Adobe, they claimed they were issues with Eclipse, and I should seek support with the developers of Eclipse. In other words, this Adobe AEM plugin is not supported by Adobe.

https://eclipse.adobe.com/aem/dev-tools/

I was able to install Eclipse with the AEM Developer Tools, but the tools were not able to generate a new project. This was confirmed by Adobe technical support in a second and separate environment. Both systems generated this error when trying to create a project.

java.lang.RuntimeException: Could not process archetype: null

Here are the steps to replicate this error in Eclipse.

1. Select File – New – Project.

1. Expand the AEM category.

2. Select the AEM Sample Multi-Module Project and click Next.

3. Click the Archetype drop-down and select com.adobe.granite.archetypes : aem-project-archetype:15.

4. Click Next.

The following error will show up in the error.log file.

java.lang.RuntimeException: Could not process archetype: null

I reported this error to Adobe, and they were able to replicate it on their own machines. Adobe said I should reach out github support even though the error was caused by the Adobe wizard.

Caused by: java.lang.NullPointerException at com.adobe.granite.ide.eclipse.ui.wizards.np.AdvancedSettingsComponent.initialize(AdvancedSettingsComponent.java:270)

Even though the JWT option is labelled DEPRECATED (see illustration), it is the only viable option. Make sure to select Service Account (JWT).

The OAuth Server-to-Server option does not currently provide the payload value that the IMS Service requires (see illustration).

I have seen Conversion Failed messages like this one (see illustration).

In these cases, the Server’s Error Log has message like these:

*ERROR* POST /content/dam/formsanddocuments/individuals/jpt/simplePDF.pdf.affBatchProcessor.html HTTP/1.1] com.adobe.granite.auth.oauth.AccessTokenProvider failed to get access token from authorization server status: 400 response: {"error":"invalid_client","error_description":"invalid client_secret parameter"}

*ERROR* POST /content/dam/formsanddocuments/individuals/jpt/simplePDF.pdf.affBatchProcessor.html HTTP/1.1] com.adobe.flamingo.ims.FlamingoTokenProviderImpl [flamingo-aem-service] Error Occurred while fetching access Token

java.io.IOException: failed to get access token from authorization server status: 400 response: {"error":"invalid_client","error_description":"invalid client_secret parameter"}

at com.adobe.granite.auth.oauth.impl.AccessTokenProviderImpl.tradeAccessToken(AccessTokenProviderImpl.java:668) [com.adobe.granite.auth.oauth:1.7.2]

The issue may stem from creating more than one IMS Account on the instance. I have been able to solve this by following these steps.

1. Delete all of the IMS Accounts.

2. Delete the Automated Forms Conversion cloud configuration. Note: This needs to be done in CRXDE.

3. Delete all failed conversions.

4. Shut down the server.

5. Make a complete copy of the aem folder including the crx-quickstart folder, the aem-author-4502.jar, and the license.properties file.

6. Work on this new copy. Change the port number on this copy to 8083 so we can clearly differentiate this version from the original.

7. Delete these subfolders in the 8083 copy.

 \author\crx-quickstart\temp
 \author\crx-quickstart\threaddumps

8. Restart this new instance.

9. When the server is up, enter this URL.

http://localhost:8083/libs/granite/ui/content/dumplibs.rebuild.html

10. Take both steps; Invalidate Caches and Rebuild Libraries.

11. When the libraries are rebuilt, enter this URL.

http://localhost:8083/system/console/fsclassloader

12. Click Clear Class Loader.

In many cases, the AEM Plugin simply does not install. Eclipse provides a message at the end of the installation Wizard (see illustration), but neither Adobe or the Eclipse Foundation will explain what to do when this happens. Adobe claims this is the fault of the Eclipse IDE.

• Eclipse Version: Eclipse IDE for Enterprise Java and Web Developers, June, 2023
• Steps to Recreate:

1. Click the Help menu (in Eclipse) and select Install New Software…
2. Click Add.
3. Enter AEM Developer Tools for the Name.
4. Enter https://eclipse.adobe.com for the Location.
5. Click Add.
6. Select all of the tools.
7. Click Next and the above error will be displayed.

• Current Status: Adobe says this is a problem with the Eclipse IDE and not with their Adobe AEM Developer Tools plugin. Eclipse has not yet responded to my bug report.