Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/**
 * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or modify it under
 * the terms of the GNU Lesser General Public License as published by the Free
 * Software Foundation; either version 2.1 of the License, or (at your option)
 * any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
 * details.
 */

public class Main {
    public static Thread[] getThreads() {
        Thread currentThread = Thread.currentThread();

        ThreadGroup threadGroup = currentThread.getThreadGroup();

        while (threadGroup.getParent() != null) {
            threadGroup = threadGroup.getParent();
        }

        int threadCountGuess = threadGroup.activeCount();

        Thread[] threads = new Thread[threadCountGuess];

        int threadCountActual = threadGroup.enumerate(threads);

        while (threadCountActual == threadCountGuess) {
            threadCountGuess *= 2;

            threads = new Thread[threadCountGuess];

            threadCountActual = threadGroup.enumerate(threads);
        }

        return threads;
    }
}