How to get a caller class of a method

Question

How do I know which class called a method?

class A {
   B b = new B();

   public void methodA() {
    Class callerClass = b.getCallerCalss(); // it should b         


        

Answer 1

Try Throwable.getStackTrace().

Create a new Throwable.. you don't have to throw it :).

untested:

Throwable t = new Throwable();
StackTraceElement[] es = t.getStackTrace();
// Not sure if es[0] would contain the caller, or es[1]. My guess is es[1].
System.out.println( es[0].getClass() + " or " + es[1].getClass() + " called me.");

Obviously if you're creating some function (getCaller()) then you'll have to go another level up in the stack trace.