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Determining If the Current Thread Is Holding a Synchronized Lock

public class Main {   public static void main(String[] argv) throws Exception {        }   public synchronized void myMethod() {     Object o = new Object();     System.out.println(Thread.holdsLock(o));     synchronized (o) {       System.out.println(Thread.holdsLock(o));     }     System.out.println(Thread.holdsLock(this));   } }