I am on kubuntu 21.10. I installed java Openjdk-11 with apt package manager. Then I downloaded the eclipse installer from official website and installed the JEE Eclipse(Eclipse for web development).
But the icon that appears in both the desktop and app menu is of JSE Eclipse. Clicking on it doesn't launch anything. The only way to launch JEE eclipse is from file manager's installed directory by clicking on the executable eclipse file.
How to get a working icon in the app menu?
I found one simple workaround as I couldn't find the solution to my problem anywhere. It needs a little bit of work but it will save you few clicks from next time while launching the Eclipse from app menu/desktop/dock.
You can directly download the JEE Eclipse package and extract it in your preferred folder. Or you can download the installer and install the JEE Eclipse from the GUI too.
After that you need to create a shortcut for the executable eclipse file manually. For this many articles are there which you can follow. I followed this youtube video and the shortcut works fine now.