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.consumer;
  27 
  28 import java.io.EOFException;
  29 
  30 import jdk.jfr.Recording;
  31 import jdk.jfr.consumer.RecordingFile;
  32 import jdk.test.lib.Asserts;
  33 import jdk.test.lib.jfr.Events;
  34 import jdk.test.lib.jfr.SimpleEvent;
  35 
  36 /**
  37  * @test
  38  * @summary Verifies that RecordingFile.readEvent() throws EOF when past the last record
  39  * @key jfr
  40  * @requires vm.hasJFR
  41  * @library /test/lib
  42  * @run main/othervm jdk.jfr.api.consumer.TestRecordingFileReadEventEof
  43  */
  44 public class TestRecordingFileReadEventEof {
  45 
  46     public static void main(String[] args) throws Throwable {
  47         Recording r = new Recording();
  48         r.start();
  49         SimpleEvent t = new SimpleEvent();
  50         t.commit();
  51         r.stop();
  52         RecordingFile file = Events.copyTo(r);
  53         r.close();
  54         file.readEvent();
  55         try {
  56             file.readEvent();
  57             Asserts.fail("Expected EOFException not thrown");
  58         } catch (EOFException x) {
  59             // OK, as expected
  60         }
  61     }
  62 }