JDEclipse: A must-have Java Decompiler
I have recently discovered this new, must-have Eclipse plugin, which is very useful for those third-party libraries whose source-code you can’t easily find or link into your Eclipse: JDEclipse.
It doesn’t only decompile byte code into Java code, it does so extremely well, keeping line numbers at the correct place, such that you can actually debug through the decompiled source code and set breakpoints that actually work.
Read more about JDEclipse here:
Note that of course you shouldn’t decompile any code whose license doesn’t allow you to do so…