jdk8-mips64-public/langtools: test/tools/javac/TryWithResources/DuplicateResource.java@7f8794f9cc14

7013420: Project Coin: remove general expression support from try-with-resources statement
Reviewed-by: mcimadamore, jjg

     1 /*

     2  * Copyright (c) 2010, 2011 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 6911256 6964740 6965277 7013420

    27  * @author Maurizio Cimadamore

    28  * @summary Check that lowered try-with-resources block does not end up creating resource twice

    29  */

    31 import java.util.ArrayList;

    33 public class DuplicateResource {

    35     static class TestResource implements AutoCloseable {

    36         TestResource() {

    37             resources.add(this);

    38         }

    39         boolean isClosed = false;

    40         public void close() throws Exception {

    41             isClosed = true;

    42         }

    43     }

    45     static ArrayList<TestResource> resources = new ArrayList<TestResource>();

    47     public static void main(String[] args) {

    48         try(TestResource tr = new TestResource()) {

    49            //do something

    50         } catch (Exception e) {

    51             throw new AssertionError("Shouldn't reach here", e);

    52         }

    53         check();

    54     }

    56     public static void check() {

    57        if (resources.size() != 1) {

    58            throw new AssertionError("Expected one resource, found: " + resources.size());

    59        }

    60        TestResource resource = resources.get(0);

    61        if (!resource.isClosed) {

    62            throw new AssertionError("Resource used in try-with-resources block has not been automatically closed");

    63        }

    64     }

    65 }

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