Pos04.java revision 549
0N/A/*
1472N/A * Copyright 2010 Sun Microsystems, Inc. All Rights Reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
0N/A * published by the Free Software Foundation.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
1472N/A * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
1472N/A * CA 95054 USA or visit www.sun.com if you need additional information or
1472N/A * have any questions.
0N/A */
0N/A
0N/A/*
0N/A * @test
0N/A * @bug 6943289
0N/A * @summary Project Coin: Improved Exception Handling for Java (aka 'multicatch')
0N/A */
0N/A
0N/Aimport java.lang.annotation.*;
0N/A
0N/Apublic class Pos04 {
0N/A
0N/A enum ExceptionKind {
0N/A A(1),
0N/A B(2),
989N/A C(1);
989N/A
989N/A int expectedValue;
989N/A
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();
}
}
}