Getting the calling object reference / class?

Question

Dear forum members,
Is it possible for A in the below example to get that B was the "caller"?
class A {
  A() {
  public void someMethod(String text) {
    System.out.println("I was called with: " + text);
    System.out.println("I was called by: " + thatMagicWayToGetCallerClassOrReference());
class B {
  public static void main(String[] args) {
    A a = new A();
    a.someMethod("HOLA HOLA");
}

Answer 1

Another way of getting the class of your caller is to use a SecurityManager object. getClassContext() is protected but you can get at it by subclassing SecurityManager (it works if you just instanciate the manager without installing it). This gives you a reference to the Class object itself where the stack trace returns only the class name. Bear in mind that the class in question will be several items up the array, the first entry is the SecurityManager itself, the second the called class.
However, I agree with others it doesn't sound like the best design. If you're having trouble with not being able to change the interface specifications to pass the extra information then consider using a static reference, if necessary a ThreadLocal. What happens if you want to call the offending method indirectly through some central method at some future time? You've lost the call origin data.
Why can't you simply add a parameter to the offending call?