--- /dev/null 2016-01-13 18:22:25.825662841 +0300 +++ new/test/runtime/CommandLine/OptionsValidation/common/optionsvalidation/JVMStartup.java 2016-01-13 19:17:38.371393793 +0300 @@ -0,0 +1,51 @@ +/* + * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code 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 General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package optionsvalidation; + +import java.lang.ref.WeakReference; + +class JVMStartup { + private static volatile WeakReference weakRef; + + private static synchronized void createWeakRef() { + Object o = new Object(); + weakRef = new WeakReference<>(o); + } + + /* Simple method to test that java start-up. Used for testing options. */ + public static void main(String[] args) throws Exception { + byte[] garbage = new byte[8192]; + int i = 0; + createWeakRef(); + do { + garbage = new byte[8192]; + i++; + /* Initiate GC after 5 iterations */ + if (i > 5) { + System.gc(); + } + } while(weakRef.get() != null); + System.out.println("Java start-up!"); + } +}