jdk8-mips64-public/langtools: test/tools/javac/TryWithResources/TwrSuppression.java@38e2c23309f1

6971877: Project Coin: improve semantics of suppressed exceptions in try-with-resources
Reviewed-by: jjb

     1 /*

     2  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    24 /*

    25  * @test

    26  * @bug 6971877

    27  * @author Joseph D. Darcy

    28  * @summary Verify a primary exception suppresses all throwables

    29  */

    31 public class TwrSuppression implements AutoCloseable {

    32     public static void main(String... args) throws Throwable {

    33         try {

    34             try (TwrSuppression r1 = new TwrSuppression(false);

    35                  TwrSuppression r2 = new TwrSuppression(true)) {

    36                 throw new RuntimeException();

    37             }

    38         } catch(RuntimeException e) {

    39             Throwable[] suppressedExceptions = e.getSuppressedExceptions();

    40             int length = suppressedExceptions.length;

    41             if (length != 2)

    42                 throw new RuntimeException("Unexpected length " + length);

    44             if (suppressedExceptions[0].getClass() != Error.class ||

    45                 suppressedExceptions[1].getClass() != Exception.class) {

    46                 System.err.println("Unexpected suppressed types!");

    47                 e.printStackTrace();

    48                 throw new RuntimeException(e);

    49             }

    50         }

    51     }

    53     private boolean throwError;

    55     private TwrSuppression(boolean throwError) {

    56         this.throwError = throwError;

    57     }

    59     @Override

    60     public void close() throws Exception {

    61         if (throwError) {

    62             throw new Error();

    63         } else {

    64             throw new Exception();

    65         }

    66     }

    67 }

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