Why is hover for quick java docs not working?

Question

I have imported a maven project through SVN in my organization. I am not able to see JavaDocs on hovering over any class, method neither is the class or method highlighting so that I can go into the respective implementation. Also, I cannot see javadocs even for core java classes. Whenever, I press Shift + F2, I get error saying, "The resource is not on the build path of a Java Project." I have tried the different answers on this forum and others as well. None seems to work. Can anyone help regarding this solution?

UPDATE: Just to add, open call hierarchy is also not working.

Answer 1

Finding a solution for this, I stumbled upon this which solved the problem for me: Make sure you are not editing the file in maven parent project. https://stackoverflow.com/a/7415743/3662041

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