I have tried Java Decompiler IntelliJ Plugin and IntelliJAD Plus.
The former works but I'm not able to place breakpoints on the decompiled code (it seems line numbers are not generated at all).
The latter didn't decompile classes properly.
Are there any other alternatives? Anything like Eclipse's(http://mchr3k.github.io/jdeclipse-realign/? (which is actuall based on the same project Java Decompiler IntelliJ Plugin is).