How can I get the class and the method that call to a static method?

Question

I have class X and in it there is a static method called doStuff() and I have several other classes with methods that call to doStuff() for some reason. Is there a way for example to have a print method in doStuff() that prints from which methods and classes it is called ?

Answer 1

Yes: new Throwable().getStackTrace() returns array of StackTraceElement. Index number 1 is your caller.

Answer 2

/**
 * <li> 0 dumpThreads
 * <li> 1 getStackTrace
 * <li> 2 getCallingMethodName
 * <li> 3 [calling method]
 * 
 * @return
 */
private String getCallingMethodName() {
    return Thread.currentThread().getStackTrace()[3].getMethodName();
}

Answer 3

You can get the caller class using:

package test;

class TestCaller {
    public static void meth() {
        System.out.println("Called by class: " + sun.reflect.Reflection.getCallerClass(2));
    }
}

public class Main {
    public static void main(String[] args) {
        TestCaller.meth();
    }
}

Output: "Called by class: class test.Main"

Answer 4

You don't need to force an Exception in order to do this. Check this similar question:

Is there a way to dump a stack trace without throwing an exception in java?