Here you can find the source of getTempDirValue()
private static final String getTempDirValue()
//package com.java2s; /**//from w w w . ja va2s.c o m * Copyright (c) 2016 NumberFour AG. * All rights reserved. This program and the accompanying materials * are made available under the terms of the Eclipse Public License v1.0 * which accompanies this distribution, and is available at * http://www.eclipse.org/legal/epl-v10.html * * Contributors: * NumberFour AG - Initial API and implementation */ import static com.google.common.base.Preconditions.checkNotNull; public class Main { /** * Returns with the value of {@code System.getProperty("java.io.tmpdir")}. Never {@code null}. */ private static final String getTempDirValue() { return checkNotNull(System.getProperty("java.io.tmpdir"), "Null for java.io.tmpdir system property."); } }