1 /* 2 * Copyright (c) 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 // This is the Java representation of the below jasm code. The test tries 26 // to create a sub-type of jdk.internal.reflect.MethodAccessorImpl in order 27 // to bypass Reflection.getCallerClass. That should fail with an IAE. 28 // 29 import java.lang.reflect.Module; 30 class fakeMethodAccessor extends jdk.internal.reflect.MethodAccessorImpl { 31 public static void main(String[] a) throws Exception { 32 fakeMethodAccessor f = new fakeMethodAccessor(); 33 System.out.println(String.class.getModule() 34 .isExported("jdk.internal.misc", fakeMethodAccessor.class.getModule())); 35 } 36 } 37 */ 38 39 super class fakeMethodAccessor 40 extends jdk/internal/reflect/MethodAccessorImpl 41 version 53:0 42 { 43 44 45 Method "<init>":"()V" 46 stack 1 locals 1 47 { 48 aload_0; 49 invokespecial Method jdk/internal/reflect/MethodAccessorImpl."<init>":"()V"; 50 return; 51 } 52 53 public static Method main:"([Ljava/lang/String;)V" 54 throws java/lang/Exception 55 stack 4 locals 2 56 { 57 new class FakeMethodAccessor; 58 dup; 59 invokespecial Method "<init>":"()V"; 60 astore_1; 61 getstatic Field java/lang/System.out:"Ljava/io/PrintStream;"; 62 ldc class java/lang/String; 63 invokevirtual Method java/lang/Class.getModule:"()Ljava/lang/reflect/Module;"; 64 ldc String "jdk.internal.misc"; 65 ldc class FakeMethodAccessor; 66 invokevirtual Method java/lang/Class.getModule:"()Ljava/lang/reflect/Module;"; 67 invokevirtual Method java/lang/reflect/Module.isExported:"(Ljava/lang/String;Ljava/lang/reflect/Module;)Z"; 68 invokevirtual Method java/io/PrintStream.println:"(Z)V"; 69 return; 70 } 71 72 } // end Class FakeMethodAccessor