jdk8-mips64-public/langtools: test/tools/javac/multicatch/Pos04.java@0b6cc4ea670f

     1 /*

     2  * Copyright (c) 2010, 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  */

    24 /*

    25  * @test

    26  * @bug 6943289

    27  * @summary Project Coin: Improved Exception Handling for Java (aka 'multicatch')

    28  */

    30 import java.lang.annotation.*;

    32 public class Pos04 {

    34     enum ExceptionKind {

    35         A(1),

    36         B(2),

    37         C(1);

    39         int expectedValue;

    41         ExceptionKind(int expectedValue) {

    42             this.expectedValue = expectedValue;

    43         }

    44     }

    46     @Retention(RetentionPolicy.RUNTIME)

    47     @interface CatchNumber {

    48        int value();

    49     }

    51     @CatchNumber(1)

    52     static class A extends Exception { }

    54     @CatchNumber(2)

    55     static class B extends Exception { }

    57     @CatchNumber(1)

    58     static class C extends Exception { }

    60     static int sum = 0;

    62     public static void main(String[] args) {

    63         for (ExceptionKind ekind : ExceptionKind.values()) {

    64             test(ekind);

    65         }

    66         if (sum != 4) {

    67             throw new Error("bad checksum - expected:4, found:" + sum);

    68         }

    69     }

    71     public static void test(ExceptionKind ekind) {

    72         try {

    73             switch(ekind) {

    74                 case A: throw new A();

    75                 case B: throw new B();

    76                 case C: throw new C();

    77             }

    78         } catch(final A | C ex) {// Catch number 1

    79             CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);

    80             if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {

    81                 throw new Error("was expecting 1 - got " + catchNumber);

    82             }

    83             sum += catchNumber.value();

    84         } catch (final B ex) { // Catch number 2

    85             CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);

    86             if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {

    87                 throw new Error("was expecting 2 - got " + catchNumber);

    88             }

    89             sum += catchNumber.value();

    90         }

    91     }

    92 }

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