How interrupt/stop a thread in Java?

Question

I\'m trying to stop a thread but I can\'t do that :

public class Middleware {

public void read() {
    try {
        socket = new Socket(\"192.168.1.8\", 20         


        

Answer 1

Rather than using Thread.stop() or Thread.interrupt() you can go for the external locks. Basically, when you try to utilize an intrinsic lock most of the time any interrupt you perform on the thread is uncontrollable.

A re-entrant lock provides you the methods as mentioned below

lock() 
unlock() 
tryLock() 
lockInterruptibly() 
isHeldByCurrentThread() 
getHoldCount() 

Check the below example

final ReentrantLock reentrantLock = new ReentrantLock();    
    @Override
    public void performTask() {
        reentrantLock.lock();
        try { 
             System.out.println(Thread.currentThread().getName() + ": Lock acquired.");
             System.out.println("Processing...");
             Thread.sleep(2000);
        } catch (InterruptedException e) {
             e.printStackTrace();
        } finally {
             System.out.println(Thread.currentThread().getName() + ": Lock released.");
         reentrantLock.unlock();
            }
    }

This makes your code elegant and handle the interrupt in a better way.