Java find out what imports a .class has [duplicate

问题:

This question already has an answer here:

• How to get all imports defined in a class using java reflection? 3 answers

Is there a way to find out what imports a class has?

In this question: Jon Skeet says that you can't do this using reflection, but

If you want to find all the types used within the compiled code, that's a slightly different matter. You may want to look at BCEL as a way of analyzing bytecode.

This is what I want to know how to do.

回答1:

Here is an old tutorial for ASM bytecode manipulation framework explaining how to read class dependencies with ASM.

回答2:

You can use a Java Decompiler like this one: Java Decompiler