Help content in Eclipse RAP 4.1 gives 404 not found error. #367
Description
I verified I can reproduce this issue against https://download.eclipse.org/eclipse/downloads/
Steps to reproduce
From a fresh installation and clean workspace:
We are upgrading our eclipse based application from eclipse 4.26 to eclipse 4.34 and from RAP 3.23 to 4.1 to support both Java 17 and 21 , and while testing the application we found Help content are not loading and giving 404 error on Eclipse RAP platform.
As we did the analysis we found the Help plugins provided by Eclipse like org.eclipse.help.webapp_3.11.600.v20240903-1558 is still containing the reference to javax.servlet instead of jakarta.servlet. However, All other eclipse plugins are migrated to use Jakarta servlet apis. So, it is blocking us to upgrade.
To reproduce it, Launch RAP web application on localhost and then try to open Help Contents. It will open a new browser window with URL http://127.0.0.1:7080/index.jsp?lang=en_US showing following 404 Not found error
I expected: Help contents to be displayed
But got: 404 not found error
Tested under this environment:
OS & version: MS windows 11 23H2
Eclipse IDE/Platform version (): Eclipse 4.26 and Eclipse 4.15
Community
I understand reporting an issue to this OSS project does not mandate anyone to fix it. Other contributors may consider the issue, or not, at their own convenience. The most efficient way to get it fixed is that I fix it myself and contribute it back as a good quality patch to the project.