Crash test for JVM that creates unlimited number of threads

CrashThread.java

import java.util.*;
import java.text.*;

class CrashThread extends Thread {
    public static final long BYTES_IN_MEGABYTE = 1024 * 1024;

    public static void main(String[] a) throws Throwable {
        try {
            System.out.println("Maximum possible heap size is " + Runtime.getRuntime().max Memory() / BYTES_IN_MEGABYTE);
        
            Thread thread;
            int threadMaxCount = Integer.MAX_VALUE;
            System.out.println(threadMaxCount + " threads will be created");

            Date now;
            DateFormat df = DateFormat.getTimeInstance();
            int threadCount = 1;
            while (threadCount < threadMaxCount) {
                now = new Date();
             
                thread = new CrashThread();
                thread.setDaemon(true);
                thread.start();
                System.out.print(df.format(now) + " launched threed " + threadCount + ". ");
                System.out.println("Heap size is " + Runtime.getRuntime().totalMemory() / BYTES_IN_MEGABYTE);
             
                threadCount++;
            }
          
            System.out.println("Successful exit");
        } catch (Throwable t) {
            System.out.println(t);
        
            throw t;
        }
    }
   
    public void run() {
        try {
            Thread.sleep(Integer.MAX_VALUE);
        } catch (InterruptedException  e) {
            System.err.println("Thread was interrupted");
            Thread.currentThread().interrupt();
        }
    }
}