Here you can find the source of getHostAddress(boolean promiscuous)
public static String getHostAddress(boolean promiscuous)
//package com.java2s; /*/*from ww w .j a v a 2s . co m*/ * Copyright (C) 2003-2007 Jost Boekemeier * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ import java.net.InetAddress; import java.net.UnknownHostException; public class Main { /** * Set to true, if the Java VM has been started with -Dphp.java.bridge.promiscuous=true; */ public static boolean JAVABRIDGE_PROMISCUOUS; /** * Returns the string "127.0.0.1". If the system property "php.java.bridge.promiscuous" is "true", * the real host address is returned. * * @return The host address as a string. */ public static String getHostAddress(boolean promiscuous) { String addr = "127.0.0.1"; try { if (JAVABRIDGE_PROMISCUOUS || promiscuous) addr = InetAddress.getLocalHost().getHostAddress(); } catch (UnknownHostException e) { /*ignore*/} return addr; } }