/*
* Copyright (c) 2010, 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')
*/
import java.lang.annotation.*;
public class Pos04 {
enum ExceptionKind {
A(1),
B(2),
C(1);
int expectedValue;
ExceptionKind(int expectedValue) {
this.expectedValue = expectedValue;
}
}
@Retention(RetentionPolicy.RUNTIME)
@interface CatchNumber {
int value();
}
@CatchNumber(1)
static class A extends Exception { }
@CatchNumber(2)
static class B extends Exception { }
@CatchNumber(1)
static class C extends Exception { }
static int sum = 0;
public static void main(String[] args) {
for (ExceptionKind ekind : ExceptionKind.values()) {
test(ekind);
}
if (sum != 4) {
throw new Error("bad checksum - expected:4, found:" + sum);
}
}
public static void test(ExceptionKind ekind) {
try {
switch(ekind) {
case A: throw new A();
case B: throw new B();
case C: throw new C();
}
} catch(final A | C ex) {// Catch number 1
CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);
if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {
throw new Error("was expecting 1 - got " + catchNumber);
}
sum += catchNumber.value();
} catch (final B ex) { // Catch number 2
CatchNumber catchNumber = ex.getClass().getAnnotation(CatchNumber.class);
if (catchNumber == null || catchNumber.value() != ekind.expectedValue) {
throw new Error("was expecting 2 - got " + catchNumber);
}
sum += catchNumber.value();
}
}
}