Forcefully terminating a thread I didn't write in Java

    int corePoolSize = 0;
    int maximumPoolSize = 64;
    int keepAliveTime = 5000;
    ExecutorService executorService =
            new ThreadPoolExecutor(corePoolSize, maximumPoolSize, keepAliveTime,
                    TimeUnit.MILLISECONDS, new SynchronousQueue<Runnable>());

import java.util.Random;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.SynchronousQueue;
import java.util.concurrent.ThreadPoolExecutor;
import java.util.concurrent.TimeUnit;


public class ExecutorTest {

    public static void main(String[] args) {

        ExecutorService executorService = new ThreadPoolExecutor(0, 64, 1000,
                        TimeUnit.MILLISECONDS, new SynchronousQueue<Runnable>());

        for (int i = 0; i <= 500; i ++) {

            try {
                Thread.sleep(new Random().nextInt(200));
            } catch (InterruptedException e) {
            }

            executorService.submit(new TestTask());
        }
    }

    public static class TestTask implements Runnable {
        public void run() {
            try {
                Thread.sleep(new Random().nextInt(1500));
            } catch (InterruptedException e) {
            }
        }
    }
}

Imports System.Diagnostics
Public Class Form1

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
        KillHungProcess("Notepad.exe") 'Put your process name here
    End Sub
    Public Sub KillHungProcess(processName As String)
        Dim psi As ProcessStartInfo = New ProcessStartInfo
        psi.Arguments = "/im " & processName & " /f"
        psi.FileName = "taskkill"
        Dim p As Process = New Process()
        p.StartInfo = psi
        p.Start()
    End Sub
End Class