6943289: Project Coin: Improved Exception Handling for Java (aka 'multicatch')
Reviewed-by: jjg, darcy
/*
* Copyright 2010 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
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* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
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* have any questions.
*/
/*
* @test
* @bug 6943289
* @summary Project Coin: Improved Exception Handling for Java (aka 'multicatch')
*
*/
public class Pos02 {
static class A extends Exception {}
static class B extends Exception {}
static class C extends Exception {}
static class C1 extends C {}
static class C2 extends C {}
enum ExceptionKind {
A,
B,
C1,
C2
}
static int caughtExceptions = 0;
static int caughtRethrownExceptions = 0;
static void test(ExceptionKind ekind) throws A, C1 {
try {
switch (ekind) {
case A : throw new A();
case B : throw new B();
case C1: throw new C1();
case C2 : throw new C2();
}
}
catch (final C2 | B ex) {
caughtExceptions++;
}
catch (final C | A ex) {
caughtExceptions++;
throw ex;
}
}
public static void main(String[] args) {
for (ExceptionKind ekind : ExceptionKind.values()) {
try {
test(ekind);
}
catch (final C1 | A ex) {
caughtRethrownExceptions++;
}
}
if (caughtExceptions != 4 && caughtRethrownExceptions == 2) {
throw new AssertionError("Exception handler called " + caughtExceptions + "times" +
" rethrown handler called " + caughtRethrownExceptions + "times");
}
}
}