jdk8-mips64-public/langtools: test/tools/javac/multicatch/Pos05.java@998b10c43157 (annotated)

test/tools/javac/multicatch/Pos05.java@998b10c43157 (annotated)

test/tools/javac/multicatch/Pos05.java

Tue, 24 Dec 2013 09:17:37 -0800

author: ksrini
date: Tue, 24 Dec 2013 09:17:37 -0800
changeset 2227: 998b10c43157
parent 2034: ac6ec071c2b2
child 2525: 2eb010b6cb22
permissions: -rw-r--r--

8029230: Update copyright year to match last edit in jdk8 langtools repository for 2013
Reviewed-by: ksrini
Contributed-by: steve.sides@oracle.com

 /*
  * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  */
 /*
  * @test
  * @bug 6943289
  * @summary  Project Coin: Improved Exception Handling for Java (aka 'multicatch')
  * @run main Pos05
  */
 import com.sun.tools.classfile.Attribute;
 import com.sun.tools.classfile.ClassFile;
 import com.sun.tools.classfile.Code_attribute;
 import com.sun.tools.classfile.Code_attribute.Exception_data;
 import com.sun.tools.classfile.Method;
 import java.io.*;
 public class Pos05 {
     static class Pos05sub {
         class A extends Exception {}
         class B extends Exception {}
         class C extends Exception {}
         void test(boolean b1, boolean b2) {
             try {
                 if (b1) {
                     throw new A();
                 }
                 else if (b2) {
                     throw new B();
                 }
                 else {
                     throw new C();
                 }
             }
             catch (final A | B | C ex) {
                 System.out.println("Exception caught");
             }
         }
     }
     static final int TYPES_IN_MULTICATCH = 3;
     static final String SUBTEST_NAME = Pos05sub.class.getName() + ".class";
     static final String TEST_METHOD_NAME = "test";
     public static void main(String... args) throws Exception {
         new Pos05().run();
     }
     public void run() throws Exception {
         String workDir = System.getProperty("test.classes");
         File compiledTest = new File(workDir, SUBTEST_NAME);
         verifyMulticatchExceptionRanges(compiledTest);
     }
     void verifyMulticatchExceptionRanges(File f) {
         System.err.println("verify: " + f);
         try {
             int count = 0;
             ClassFile cf = ClassFile.read(f);
             Method testMethod = null;
             for (Method m : cf.methods) {
                 if (m.getName(cf.constant_pool).equals(TEST_METHOD_NAME)) {
                     testMethod = m;
                     break;
                 }
             }
             if (testMethod == null) {
                 throw new Error("Test method not found");
             }
             Code_attribute ea = (Code_attribute)testMethod.attributes.get(Attribute.Code);
             if (testMethod == null) {
                 throw new Error("Code attribute for test() method not found");
             }
             Exception_data firstExceptionTable = null;
             for (int i = 0 ; i < ea.exception_table_length; i++) {
                 if (firstExceptionTable == null) {
                     firstExceptionTable = ea.exception_table[i];
                 }
                 if (ea.exception_table[i].handler_pc != firstExceptionTable.handler_pc ||
                         ea.exception_table[i].start_pc != firstExceptionTable.start_pc ||
                         ea.exception_table[i].end_pc != firstExceptionTable.end_pc) {
                     throw new Error("Multiple overlapping catch clause found in generated code");
                 }
                 count++;
             }
             if (count != TYPES_IN_MULTICATCH) {
                 throw new Error("Wrong number of exception data found: " + count);
             }
         } catch (Exception e) {
             e.printStackTrace();
             throw new Error("error reading " + f +": " + e);
         }
     }
 }

Mercurial > jdk8-mips64-public > langtools / annotate

test/tools/javac/multicatch/Pos05.java@998b10c43157 (annotated)

test/tools/javac/multicatch/Pos05.java