Eclipse doesn't show hover Class/function/variable information

[WolfeeLuo]

After install this plugin and use it open class file, Eclipse doesn't show information any more including variable value in debug mode when I hover the mouse on the targeting variable.
FIY, I installed this plugin thru forking and compiling the code then copy jars into corresponding folder in the root of Eclipse.

[RobertZenz]

Is the correct method selected in the threads view?

I've noticed a long time ago that some times the correct method does not get selected when breaking in debug mode...would be quite an eye opener if that is actually related to this plugin.

[WolfeeLuo]

@RobertZenz

Hi RobertZenz
Yes. the correct method is selected for sure. Actually it can be reproduced as many times as I want in myside. I'm not sure if it's caused by the installation thru compilation.
steps to reproduce this issue in my side are shown bellow.
1.download eclipse-rcp-neon3-win32-x64.(I tried oxygen firstly, but it throws compilation error while neon doesn't )
2.clone this repo and use eclipse neon to compile and build this plug as what you said in README. finally I got jars in features and plugins folder
3.download eclipse-jee-oxygen(also tried jee-neon, same issue) and install
4.copy compiled jars in step2 for this plug into installation of eclipse.
5.new a Test class and declare a List property, then hover the mouse on this property. NOW the reference information will pop up like "An ordered collection (also known as a sequence). The user of .....etc."
6.import a jar and use FernFlower supplied by this plug.
7.back to the Test class and hover mouse on the List property again, reference information won't pop up any more. It seems like this plugin disabled the hover feature of eclipse.