Here you can find the source of clearMemory()
public static void clearMemory()
//package com.java2s; /**//from w w w. j a va 2 s . c o m * This file is part of GeneMANIA. * Copyright (C) 2010 University of Toronto. * * 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. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ public class Main { public static void clearMemory() { // LOG.debug("invoking garbage collector"); System.gc(); System.gc(); System.gc(); System.gc(); } }