93 lines
2.9 KiB
Java
93 lines
2.9 KiB
Java
/*
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* Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test
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* @bug 6943289
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* @summary Project Coin: Improved Exception Handling for Java (aka 'multicatch')
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*/
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import java.lang.annotation.*;
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public class Pos04 {
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enum ExceptionKind {
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A(1),
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B(2),
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C(1);
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int expectedValue;
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ExceptionKind(int expectedValue) {
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this.expectedValue = expectedValue;
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}
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}
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@Retention(RetentionPolicy.RUNTIME)
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@interface CatchNumber {
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int value();
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}
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@CatchNumber(1)
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static class A extends Exception { }
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@CatchNumber(2)
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static class B extends Exception { }
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@CatchNumber(1)
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static class C extends Exception { }
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static int sum = 0;
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public static void main(String[] args) {
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for (ExceptionKind ekind : ExceptionKind.values()) {
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test(ekind);
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}
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if (sum != 4) {
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throw new Error("bad checksum - expected:4, found:" + sum);
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}
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}
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public static void test(ExceptionKind ekind) {
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try {
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switch(ekind) {
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case A: throw new A();
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case B: throw new B();
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case C: throw new C();
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}
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} catch(final A | C ex) {// Catch number 1
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CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);
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if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {
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throw new Error("was expecting 1 - got " + catchNumber);
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}
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sum += catchNumber.value();
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} catch (final B ex) { // Catch number 2
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CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);
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if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {
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throw new Error("was expecting 2 - got " + catchNumber);
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}
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sum += catchNumber.value();
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}
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}
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}
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