1 /* 2 * Copyright (c) 2009 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 java.lang.annotation.*; 25 import java.io.*; 26 import java.net.URL; 27 import java.util.List; 28 29 import com.sun.tools.classfile.*; 30 31 /* 32 * @test 33 * @bug 6843077 8006775 34 * @summary test that typecasts annotation are emitted if only the cast 35 * expression is optimized away 36 */ 37 38 public class TypeCasts extends ClassfileTestHelper{ 39 public static void main(String[] args) throws Exception { 40 new TypeCasts().run(); 41 } 42 43 public void run() throws Exception { 44 expected_tinvisibles = 4; 45 expected_tvisibles = 0; 46 47 ClassFile cf = getClassFile("TypeCasts$Test.class"); 48 test(cf); 49 for (Field f : cf.fields) { 50 test(cf, f); 51 } 52 for (Method m: cf.methods) { 53 test(cf, m); 54 } 55 56 countAnnotations(); 57 58 if (errors > 0) 59 throw new Exception(errors + " errors found"); 60 System.out.println("PASSED"); 61 } 62 63 /*********************** Test class *************************/ 64 static class Test { 65 @Target({ElementType.TYPE_USE, ElementType.TYPE_PARAMETER}) 66 @interface A {} 67 68 void emit() { 69 Object o = null; 70 String s = null; 71 72 String a0 = (@A String)o; 73 Object a1 = (@A Object)o; 74 75 String b0 = (@A String)s; 76 Object b1 = (@A Object)s; 77 } 78 79 void alldeadcode() { 80 Object o = null; 81 82 if (false) { 83 String a0 = (@A String)o; 84 } 85 } 86 } 87 }