/* * Copyright (c) 2015, 2018, 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. * */ import sun.hotspot.WhiteBox; public class HelloExt { public static void main(String[] args) throws Throwable { String className = "javax.annotation.processing.FilerException"; Class cls = Class.forName(className); ClassLoader loader = cls.getClassLoader(); if (loader != ClassLoader.getPlatformClassLoader()) { throw new java.lang.RuntimeException(className + " should be load by PlatformClassLoader but it is loaded by " + loader); } WhiteBox wb = WhiteBox.getWhiteBox(); if (wb.isSharedClass(cls)) { System.out.println("As expected, " + className + " is in shared space."); } else { throw new java.lang.RuntimeException(className + " is not in shared space."); } className = "[Ljava.lang.Comparable;"; cls = Class.forName(className); loader = cls.getClassLoader(); if (loader != null) { throw new java.lang.RuntimeException(className + " should be load by the NULL class loader but it is loaded by " + loader); } if (wb.isSharedClass(cls)) { System.out.println("As expected, " + className + " is in shared space."); } else { throw new java.lang.RuntimeException(className + " is not in shared space."); } } }