/* * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ package com.github.ggrandes.kvstore.utils; public class Check64bitsJVM { public static boolean JVMis64bits() { final String propOsArch = System.getProperty("os.arch"); final String propSunDataModel = System.getProperty("sun.arch.data.model"); // http://stackoverflow.com/questions/807263/how-do-i-detect-which-kind-of-jre-is-installed-32bit-vs-64bit if (propSunDataModel != null) { return propSunDataModel.equals("64"); } if (propOsArch != null) { return propOsArch.contains("64"); } return false; } public static void main(final String[] args) throws Throwable { System.out.println("JVM is 64bits?: " + JVMis64bits()); } }