1 /* 2 * Copyright (c) 2016, 2019, 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 * @summary AOT methods should be swept if a super class has changed. 27 * @library /test/lib / 28 * @modules java.base/jdk.internal.misc 29 * java.management 30 * @requires vm.aot 31 * @build compiler.aot.fingerprint.SuperChanged 32 * compiler.aot.AotCompiler 33 * 34 * @run main 35 * compiler.aot.fingerprint.SuperChanged WRITE-UNMODIFIED-CLASS 36 * @run driver compiler.aot.AotCompiler -libname libSuperChanged.so 37 * -class compiler.aot.fingerprint.Foo 38 * 39 * @run main 40 * compiler.aot.fingerprint.SuperChanged TEST-UNMODIFIED 41 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseAOT -XX:+PrintAOT 42 * -XX:AOTLibrary=./libSuperChanged.so 43 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace 44 * compiler.aot.fingerprint.SuperChanged TEST-UNMODIFIED 45 * 46 * @run main 47 * compiler.aot.fingerprint.SuperChanged WRITE-MODIFIED-CLASS 48 * @run main 49 * compiler.aot.fingerprint.SuperChanged TEST-MODIFIED 50 * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:+UseAOT -XX:+PrintAOT 51 * -XX:AOTLibrary=./libSuperChanged.so 52 * -Xlog:aot+class+fingerprint=trace -Xlog:aot+class+load=trace 53 * compiler.aot.fingerprint.SuperChanged TEST-MODIFIED 54 */ 55 56 package compiler.aot.fingerprint; 57 58 import jdk.test.lib.Asserts; 59 import jdk.test.lib.compiler.InMemoryJavaCompiler; 60 61 import java.io.*; 62 63 class Bar { 64 volatile int x = 0; 65 volatile int y = 1; 66 } 67 68 class Foo extends Bar { 69 70 volatile int z; 71 int getX() { 72 for (z = 0; z < 10000; z++) { 73 if (z % 7 == 1) { 74 z += 2; 75 } 76 } 77 return x; 78 } 79 } 80 81 public class SuperChanged { 82 public static void main(String args[]) throws Throwable { 83 Foo f = new Foo(); 84 System.out.println("f.getX = " + f.getX()); 85 switch (args[0]) { 86 case "WRITE-UNMODIFIED-CLASS": 87 compileClass(false); 88 break; 89 case "WRITE-MODIFIED-CLASS": 90 compileClass(true); 91 break; 92 case "TEST-UNMODIFIED": 93 Asserts.assertTrue(f.getX() == 0, "getX from unmodified Foo class should return 0"); 94 break; 95 case "TEST-MODIFIED": 96 Asserts.assertTrue(f.getX() == 1, "getX from modified Foo class should return 1"); 97 break; 98 default: 99 throw new RuntimeException("unexpected option: " + args[0]); 100 } 101 } 102 103 static void compileClass(boolean isModified) throws Throwable { 104 String class_src_0 = "package compiler.aot.fingerprint; class Bar {volatile int x = 0; volatile int y = 1;}"; 105 String class_src_1 = "package compiler.aot.fingerprint; class Bar {volatile int y = 0; volatile int x = 1;}"; 106 String src = (isModified) ? class_src_1 : class_src_0; 107 108 String filename = System.getProperty("test.classes") + "/compiler/aot/fingerprint/Bar.class"; 109 FileOutputStream fos = new FileOutputStream(filename); 110 fos.write(InMemoryJavaCompiler.compile("compiler.aot.fingerprint.Bar", src)); 111 fos.close(); 112 } 113 }