/*
* 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();
}
}
}
Messung V0.5 in Prozent C=94 H=96 G=94
¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-10-11)
¤
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