jdk8-mips64-public/langtools: test/tools/javac/TryWithResources/TestTwr09.java@683b3e7e05a7

     1 /*

     2  * Copyright (c) 2010, 2013, 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     8025113

    27  * @author  sogoel

    28  * @summary t-w-r completes abruptly if the initialization of resource completes abruptly

    29  */

    31 import java.io.FileInputStream;

    32 import java.io.IOException;

    33 import java.io.File;

    35 /*

    36  * If the initialization of the resource completes abruptly because of a

    37  * throw of a value V ... and the automatic ->closing of the resource completes normally,

    38  * then the try-with-resources statement completes abruptly because of the throw of value V.

    39  */

    40 public class TestTwr09 {

    42     /**

    43      * throw from ctor of nested resource

    44      * Check first resource is not open.

    45      */

    46     String test1() {

    47         String ret = null;

    48         try (ResCloseable tr = new ResCloseable(new ResCloseable("throw from inner resource ctor",3))) {

    49             ret = "FAIL";

    50         } catch (RuntimeException re) {

    51             ret = re.getMessage();

    52         }

    53         return ret;

    54     }

    56     /**

    57      * throw from ctor of 2nd resource.

    58      * 1st resource, FileInputStream should be automatically closed.

    59      */

    60     String test2() {

    61         String ret = null;

    62         byte[] buf = new byte[1];

    63         try (java.io.ByteArrayInputStream tr = new java.io.ByteArrayInputStream(buf);

    64             ResCloseable str = new ResCloseable("throw from inner resource ctor",3)) {

    65             ret = "FAIL";

    66         } catch (final IOException fe) {

    67             ret = "FAIL test2";

    68         } catch (RuntimeException re) {

    69             ret = "PASS test2";

    70         }

    71         System.out.println("Ret = " + ret);

    72         return ret;

    73     }

    75     public static void main(String... args) {

    76         TestTwr09 t = new TestTwr09();

    77         if (t.test1().compareTo("throw from inner resource ctor") != 0) {

    78             throw new RuntimeException("FAIL-test1");

    79         }

    80         if (t.test2().compareTo("PASS test2") != 0) {

    81             throw new RuntimeException("FAIL-test2");

    82         }

    83     }

    84 }

    86 /** a simple resource the implements AutoCloseable so it can be used

    87  * in twr's resource specification block.

    88  */

    89 class ResCloseable implements AutoCloseable {

    91     ResCloseable testres = null;

    92     String msg = "default";

    93     boolean bOpen = false;

    95     public ResCloseable() {

    96         bOpen = true;

    97     }

    99     public ResCloseable(ResCloseable tr) {

   100         bOpen = true;

   101         msg = tr.getMsg();

   102     }

   104     public ResCloseable(String s) {

   105         bOpen = true;

   106         msg = s;

   107     }

   109     public ResCloseable(String msg, int c) {

   110         bOpen = true;

   111         if (c == 3) {

   112             throw new RuntimeException(msg);

   113         }

   114     }

   116     @Override

   117     public void close() {

   118         bOpen = false;

   119     }

   121     public boolean isOpen() {

   122         return bOpen;

   123     }

   125     public String getMsg() {

   126         return msg;

   127     }

   128 }

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