1 /*

     2  * Copyright (c) 2017, 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

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    22  *

    23  */

    24 

    25 /*

    26  * @test

    27  * @summary Test for field annotations.

    28  * @requires (vm.opt.UseCompressedOops == null) | (vm.opt.UseCompressedOops == true)

    29  * @library /test/lib

    30  * @modules java.base/jdk.internal.misc

    31  *          java.management

    32  *          jdk.jartool/sun.tools.jar

    33  * @compile test-classes/FieldAnnotationsApp.java test-classes/MyAnnotation.java

    34  * @run main FieldAnnotationsTest

    35  */

    36 

    37 import jdk.test.lib.process.OutputAnalyzer;

    38 

    39 // This is a test for the handling of multi-dimensional Arrays in MetaspaceClosure.

    40 //

    41 // We choose FieldAnnotations because they happen to be implemented as a multi-dimension

    42 // Array (Annotations::_fields_annotations, which is of type Array<Array<unsigned char>*>*,

    43 // and is handled by the template class PointerArrayRef<T> in metaspaceClosure.hpp).

    44 //

    45 // Specifically, we are testing the following C code, where _fields_annotations is non-NULL:

    46 //

    47 // void Annotations::metaspace_pointers_do(MetaspaceClosure* it) {

    48 //   ...

    49 //   it->push(&_fields_annotations);

    50 //

    51 // which will be matched with the function

    52 //

    53 // template <typename T> void MetaspaceClosure::push(Array<T*>** mpp, Writability w = _default)

    54 //

    55 public class FieldAnnotationsTest {

    56     public static void main(String[] args) throws Exception {

    57         String[] ARCHIVE_CLASSES = {"FieldAnnotationsApp", "MyAnnotation"};

    58         String appJar = JarBuilder.build("FieldAnnotationsTest", ARCHIVE_CLASSES);

    59 

    60         OutputAnalyzer dumpOutput = TestCommon.dump(

    61                 appJar, ARCHIVE_CLASSES);

    62         TestCommon.checkDump(dumpOutput);

    63 

    64         OutputAnalyzer execOutput = TestCommon.exec(appJar, "FieldAnnotationsApp");

    65         TestCommon.checkExec(execOutput, "Field annotations are OK.");

    66     }

    67 }