1 /* 2 * Copyright (c) 2013, 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 import boot.GetCallerClass; 25 import java.lang.reflect.*; 26 import jdk.internal.reflect.CallerSensitive; 27 import jdk.internal.reflect.Reflection; 28 29 public class GetCallerClassTest { 30 private final GetCallerClass gcc; // boot.GetCallerClass is in bootclasspath 31 GetCallerClassTest() { 32 this.gcc = new GetCallerClass(); 33 } 34 35 public static void main(String[] args) throws Exception { 36 GetCallerClassTest gcct = new GetCallerClassTest(); 37 // ensure methods are annotated with @CallerSensitive 38 ensureAnnotationPresent(boot.GetCallerClass.class, "getCallerLoader", true); 39 ensureAnnotationPresent(GetCallerClassTest.class, "testNonSystemMethod", false); 40 // call Reflection.getCallerClass from bootclasspath with and without @CS 41 gcct.testCallerSensitiveMethods(); 42 // call Reflection.getCallerClass from classpath with @CS 43 gcct.testNonSystemMethod(); 44 } 45 46 private static void ensureAnnotationPresent(Class<?> c, String name, boolean cs) 47 throws NoSuchMethodException 48 { 49 Method m = c.getDeclaredMethod(name); 50 if (!m.isAnnotationPresent(CallerSensitive.class)) { 51 throw new RuntimeException("@CallerSensitive not present in method " + m); 52 } 53 if (Reflection.isCallerSensitive(m) != cs) { 54 throw new RuntimeException("Unexpected: isCallerSensitive returns " + 55 Reflection.isCallerSensitive(m)); 56 } 57 } 58 59 private void testCallerSensitiveMethods() { 60 try { 61 ClassLoader cl = gcc.getCallerLoader(); 62 if (cl != GetCallerClassTest.class.getClassLoader()) { 63 throw new RuntimeException("mismatched class loader"); 64 } 65 gcc.missingCallerSensitiveAnnotation(); 66 throw new RuntimeException("getCallerLoader not marked with @CallerSensitive"); 67 } catch (InternalError e) { 68 StackTraceElement[] stackTrace = e.getStackTrace(); 69 checkStackTrace(stackTrace, e); 70 if (!stackTrace[1].getClassName().equals(GetCallerClass.class.getName()) || 71 !stackTrace[1].getMethodName().equals("missingCallerSensitiveAnnotation")) { 72 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 73 } 74 if (!stackTrace[2].getClassName().equals(GetCallerClassTest.class.getName()) || 75 !stackTrace[2].getMethodName().equals("testCallerSensitiveMethods")) { 76 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 77 } 78 System.out.println("Expected error: " + e.getMessage()); 79 } 80 } 81 82 @CallerSensitive 83 private void testNonSystemMethod() { 84 try { 85 Class<?> c = Reflection.getCallerClass(); 86 throw new RuntimeException("@CallerSensitive testNonSystemMethods not supported"); 87 } catch (InternalError e) { 88 StackTraceElement[] stackTrace = e.getStackTrace(); 89 checkStackTrace(stackTrace, e); 90 if (!stackTrace[1].getClassName().equals(GetCallerClassTest.class.getName()) || 91 !stackTrace[1].getMethodName().equals("testNonSystemMethod")) { 92 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 93 } 94 if (!stackTrace[2].getClassName().equals(GetCallerClassTest.class.getName()) || 95 !stackTrace[2].getMethodName().equals("main")) { 96 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 97 } 98 System.out.println("Expected error: " + e.getMessage()); 99 } 100 } 101 102 private void checkStackTrace(StackTraceElement[] stackTrace, Error e) { 103 if (stackTrace.length < 3) { 104 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 105 } 106 107 if (!stackTrace[0].getClassName().equals("jdk.internal.reflect.Reflection") || 108 !stackTrace[0].getMethodName().equals("getCallerClass")) { 109 throw new RuntimeException("Unexpected error: " + e.getMessage(), e); 110 } 111 112 } 113 }