Java Tricks: Find out who invoked you

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Invoker.java

package org.liango;/** * Java Tricks: Find out who invoked you * * @author http://bassistance.de/2010/02/10/java-tricks-find-out-who-invoked-you/ */public class Invoker { public static void main(String[] args) { System.out.println("Invoked from: " + invoker()); System.out.println("A bit more indirect: " + test()); } private static String test() { return invoker(); } public static String invoker() { try { throw new RuntimeException(); } catch(RuntimeException e) { return e.getStackTrace()[1].toString(); } }}

Invoker2.java

package org.liango;/** * Java Tricks: Find out who invoked you * * @author http://bassistance.de/2010/02/10/java-tricks-find-out-who-invoked-you/ */public class Invoker2 { public static void main(String[] args) { System.out.println("Invoked from: " + invoker()); System.out.println("A bit more indirect: " + test()); } private static String test() { return invoker(); } public static String invoker() { return Thread.currentThread().getStackTrace()[2].toString(); }}