Wed, 27 Apr 2011 17:03:24 -0700
7039822: Project Coin: add explicit tests for the lub of an exception parameter
Reviewed-by: mcimadamore, jjg
mcimadamore@550 | 1 | /* |
ohair@554 | 2 | * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. |
mcimadamore@550 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
mcimadamore@550 | 4 | * |
mcimadamore@550 | 5 | * This code is free software; you can redistribute it and/or modify it |
mcimadamore@550 | 6 | * under the terms of the GNU General Public License version 2 only, as |
mcimadamore@550 | 7 | * published by the Free Software Foundation. |
mcimadamore@550 | 8 | * |
mcimadamore@550 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
mcimadamore@550 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
mcimadamore@550 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
mcimadamore@550 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
mcimadamore@550 | 13 | * accompanied this code). |
mcimadamore@550 | 14 | * |
mcimadamore@550 | 15 | * You should have received a copy of the GNU General Public License version |
mcimadamore@550 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
mcimadamore@550 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
mcimadamore@550 | 18 | * |
ohair@554 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
ohair@554 | 20 | * or visit www.oracle.com if you need additional information or have any |
ohair@554 | 21 | * questions. |
mcimadamore@550 | 22 | */ |
mcimadamore@550 | 23 | |
mcimadamore@550 | 24 | /* |
mcimadamore@550 | 25 | * @test |
mcimadamore@550 | 26 | * @bug 6943289 |
mcimadamore@550 | 27 | * @summary Project Coin: Improved Exception Handling for Java (aka 'multicatch') |
mcimadamore@550 | 28 | * @run main Pos05 |
mcimadamore@550 | 29 | */ |
mcimadamore@550 | 30 | |
mcimadamore@550 | 31 | import com.sun.tools.classfile.Attribute; |
mcimadamore@550 | 32 | import com.sun.tools.classfile.ClassFile; |
mcimadamore@550 | 33 | import com.sun.tools.classfile.Code_attribute; |
mcimadamore@550 | 34 | import com.sun.tools.classfile.Code_attribute.Exception_data; |
mcimadamore@550 | 35 | import com.sun.tools.classfile.Method; |
mcimadamore@550 | 36 | import java.io.*; |
mcimadamore@550 | 37 | |
mcimadamore@550 | 38 | public class Pos05 { |
mcimadamore@550 | 39 | |
mcimadamore@550 | 40 | static class Pos05sub { |
mcimadamore@550 | 41 | |
mcimadamore@550 | 42 | class A extends Exception {} |
mcimadamore@550 | 43 | class B extends Exception {} |
mcimadamore@550 | 44 | class C extends Exception {} |
mcimadamore@550 | 45 | |
mcimadamore@550 | 46 | void test(boolean b1, boolean b2) { |
mcimadamore@550 | 47 | try { |
mcimadamore@550 | 48 | if (b1) { |
mcimadamore@550 | 49 | throw new A(); |
mcimadamore@550 | 50 | } |
mcimadamore@550 | 51 | else if (b2) { |
mcimadamore@550 | 52 | throw new B(); |
mcimadamore@550 | 53 | } |
mcimadamore@550 | 54 | else { |
mcimadamore@550 | 55 | throw new C(); |
mcimadamore@550 | 56 | } |
mcimadamore@550 | 57 | } |
mcimadamore@550 | 58 | catch (final A | B | C ex) { |
mcimadamore@550 | 59 | System.out.println("Exception caught"); |
mcimadamore@550 | 60 | } |
mcimadamore@550 | 61 | } |
mcimadamore@550 | 62 | } |
mcimadamore@550 | 63 | |
mcimadamore@550 | 64 | static final int TYPES_IN_MULTICATCH = 3; |
mcimadamore@550 | 65 | static final String SUBTEST_NAME = Pos05sub.class.getName() + ".class"; |
mcimadamore@550 | 66 | static final String TEST_METHOD_NAME = "test"; |
mcimadamore@550 | 67 | |
mcimadamore@550 | 68 | public static void main(String... args) throws Exception { |
mcimadamore@550 | 69 | new Pos05().run(); |
mcimadamore@550 | 70 | } |
mcimadamore@550 | 71 | |
mcimadamore@550 | 72 | public void run() throws Exception { |
mcimadamore@550 | 73 | String workDir = System.getProperty("test.classes"); |
mcimadamore@550 | 74 | File compiledTest = new File(workDir, SUBTEST_NAME); |
mcimadamore@550 | 75 | verifyMulticatchExceptionRanges(compiledTest); |
mcimadamore@550 | 76 | } |
mcimadamore@550 | 77 | |
mcimadamore@550 | 78 | void verifyMulticatchExceptionRanges(File f) { |
mcimadamore@550 | 79 | System.err.println("verify: " + f); |
mcimadamore@550 | 80 | try { |
mcimadamore@550 | 81 | int count = 0; |
mcimadamore@550 | 82 | ClassFile cf = ClassFile.read(f); |
mcimadamore@550 | 83 | Method testMethod = null; |
mcimadamore@550 | 84 | for (Method m : cf.methods) { |
mcimadamore@550 | 85 | if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) { |
mcimadamore@550 | 86 | testMethod = m; |
mcimadamore@550 | 87 | break; |
mcimadamore@550 | 88 | } |
mcimadamore@550 | 89 | } |
mcimadamore@550 | 90 | if (testMethod == null) { |
mcimadamore@550 | 91 | throw new Error("Test method not found"); |
mcimadamore@550 | 92 | } |
mcimadamore@550 | 93 | Code_attribute ea = (Code_attribute)testMethod.attributes.get(Attribute.Code); |
mcimadamore@550 | 94 | if (testMethod == null) { |
mcimadamore@550 | 95 | throw new Error("Code attribute for test() method not found"); |
mcimadamore@550 | 96 | } |
mcimadamore@550 | 97 | Exception_data firstExceptionTable = null; |
mcimadamore@550 | 98 | for (int i = 0 ; i < ea.exception_table_langth; i++) { |
mcimadamore@550 | 99 | if (firstExceptionTable == null) { |
mcimadamore@550 | 100 | firstExceptionTable = ea.exception_table[i]; |
mcimadamore@550 | 101 | } |
mcimadamore@550 | 102 | if (ea.exception_table[i].handler_pc != firstExceptionTable.handler_pc || |
mcimadamore@550 | 103 | ea.exception_table[i].start_pc != firstExceptionTable.start_pc || |
mcimadamore@550 | 104 | ea.exception_table[i].end_pc != firstExceptionTable.end_pc) { |
mcimadamore@550 | 105 | throw new Error("Multiple overlapping catch clause found in generated code"); |
mcimadamore@550 | 106 | } |
mcimadamore@550 | 107 | count++; |
mcimadamore@550 | 108 | } |
mcimadamore@550 | 109 | if (count != TYPES_IN_MULTICATCH) { |
mcimadamore@550 | 110 | throw new Error("Wrong number of exception data found: " + count); |
mcimadamore@550 | 111 | } |
mcimadamore@550 | 112 | } catch (Exception e) { |
mcimadamore@550 | 113 | e.printStackTrace(); |
mcimadamore@550 | 114 | throw new Error("error reading " + f +": " + e); |
mcimadamore@550 | 115 | } |
mcimadamore@550 | 116 | } |
mcimadamore@550 | 117 | } |