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How can we check if a thread has a monitor lock on a given object?

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Pragya Keshap answered on February 4, 2023 Popularity 1/10 Helpfulness 1/10

answer How can we check if a thread has a monitor lock on a given object?

How can we check if a thread has a monitor lock on a given object?

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In Java, Thread class has a static method holdsLock(Object

objToCheck) to check whether thread has a lock on objToLock

object.

This method will return true if current thread holds the lock on the

objToLock object that was passed as an argument to this method

class GFG {
 
    // Creating the constructor
    GFG()
    {
 
        // Checking the status of the lock on the object
        System.out.println(Thread.holdsLock(this));
 
        // Synchronizing the thread
        synchronized (this)
        {
 
            // Checking the status of the lock on the object
            // using holdsLock() method over
            // same thread using this keyword
            System.out.println(Thread.holdsLock(this));
        }
    }
 
    // Main driver method
    public static void main(String[] args)
    {
 
        // Creating a Thread class object
        Thread ob = new Thread() {
            // run() method for this thread which
            // is invoked as start() method is invoked
            public void run()
            {
 
                // Creating a class object
                // inside the run() methodof the class
                GFG ob1 = new GFG();
            }
        };
 
        // Starting the thread with
        // the help of start() method
        ob.start();
    }
}

https://www.geeksforgeeks.org/how-to-check-if-a-thread-holds-lock-on-a-particular-object-in-java/

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java monitor

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Contributed on Feb 04 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How can we check if a thread has a monitor lock on a given object?

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