1 /* 2 * Copyright (c) 2014, 2015, 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 /** @test 25 * @bug 8034854 26 * @summary Verify that the InnerClasses attribute has outer_class_info_index zero if it has 27 * inner_name_index zero (for synthetic classes) 28 * @modules jdk.compiler/com.sun.tools.classfile 29 * @compile SyntheticClasses.java 30 * @run main SyntheticClasses 31 */ 32 33 import java.io.*; 34 import java.util.*; 35 import com.sun.tools.classfile.*; 36 37 public class SyntheticClasses { 38 39 public static void main(String[] args) throws IOException, ConstantPoolException { 40 new SyntheticClasses().run(); 41 } 42 43 private void run() throws IOException, ConstantPoolException { 44 File testClasses = new File(System.getProperty("test.classes")); 45 for (File classFile : testClasses.listFiles(f -> f.getName().endsWith(".class"))) { 46 ClassFile cf = ClassFile.read(classFile); 47 if (cf.getName().matches(".*\\$[0-9]+")) { 48 EnclosingMethod_attribute encl = 49 (EnclosingMethod_attribute) cf.getAttribute(Attribute.EnclosingMethod); 50 if (encl != null) { 51 if (encl.method_index != 0) 52 throw new IllegalStateException("Invalid EnclosingMethod.method_index: " + 53 encl.method_index + "."); 54 } 55 } 56 InnerClasses_attribute attr = 57 (InnerClasses_attribute) cf.getAttribute(Attribute.InnerClasses); 58 if (attr != null) { 59 for (InnerClasses_attribute.Info info : attr.classes) { 60 if (cf.major_version < 51) 61 throw new IllegalStateException(); 62 if (info.inner_name_index == 0 && info.outer_class_info_index != 0) 63 throw new IllegalStateException("Invalid outer_class_info_index=" + 64 info.outer_class_info_index + 65 "; inner_name_index=" + 66 info.inner_name_index + "."); 67 } 68 } 69 } 70 } 71 } 72 73 class SyntheticConstructorAccessTag { 74 75 private static class A { 76 private A(){} 77 } 78 79 public void test() { 80 new A(); 81 } 82 } 83 84 class SyntheticEnumMapping { 85 private int convert(E e) { 86 switch (e) { 87 case A: return 0; 88 default: return -1; 89 } 90 } 91 enum E { A } 92 } 93 94 interface SyntheticAssertionsDisabled { 95 public default void test() { 96 assert false; 97 } 98 }