1 /* 2 * Copyright (c) 2015, 2016, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test 26 * @bug 6583051 27 * @summary Give error if java.lang.Object has been incompatibly overridden on the bootpath 28 * @library /testlibrary 29 * @modules java.base/jdk.internal.misc 30 * java.management 31 * @run main BootstrapRedefine 32 */ 33 34 import jdk.test.lib.*; 35 36 public class BootstrapRedefine { 37 38 public static void main(String[] args) throws Exception { 39 String source = "package java.lang;" + 40 "public class Object {" + 41 " void dummy1() { return; }" + 42 " void dummy2() { return; }" + 43 " void dummy3() { return; }" + 44 "}"; 45 46 ClassFileInstaller.writeClassToDisk("java/lang/Object", 47 InMemoryJavaCompiler.compile("java.lang.Object", source, 48 "-Xmodule:java.base"), 49 "mods/java.base"); 50 51 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder("-Xpatch:java.base=mods/java.base", "-version"); 52 new OutputAnalyzer(pb.start()) 53 .shouldContain("Incompatible definition of java.lang.Object") 54 .shouldHaveExitValue(1); 55 } 56 }