1 /*
   2  * Copyright (c) 2018, 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.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 package jdk.jfr.api.metadata.valuedescriptor;
  27 
  28 import jdk.jfr.Event;
  29 import jdk.jfr.EventType;
  30 import jdk.jfr.ValueDescriptor;
  31 import jdk.test.lib.Asserts;
  32 
  33 /**
  34  * @test
  35  * @summary Test ValueDescriptor.isArray().
  36  * @key jfr
  37  *
  38  * @library /lib /
  39  * @run main/othervm jdk.jfr.api.metadata.valuedescriptor.TestIsArray
  40  */
  41 public class TestIsArray {
  42 
  43     public static void main(String[] args) throws Throwable {
  44         EventType type = EventType.getEventType(EventWithArray.class);
  45 
  46         ValueDescriptor d = type.getField("myIds");
  47 
  48         Asserts.assertNull(d, "ValueDescriptor for int[] was not null");
  49 
  50         type = EventType.getEventType(EventWithoutArray.class);
  51         d = type.getField("myId");
  52         Asserts.assertFalse(d.isArray(), "isArray() was true for int");
  53     }
  54 
  55     private static class EventWithArray extends Event {
  56         @SuppressWarnings("unused")
  57         public int[] myIds;
  58     }
  59 
  60     private static class EventWithoutArray extends Event {
  61         @SuppressWarnings("unused")
  62         public int myId;
  63     }
  64 }