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.recording.misc; 27 28 import java.util.HashMap; 29 import java.util.Map; 30 31 import jdk.jfr.Recording; 32 import jdk.test.lib.Asserts; 33 34 /* 35 * @test 36 * @summary Verify that each recording get unique a id 37 * @key jfr 38 * @library /test/lib 39 * @run main/othervm jdk.jfr.api.recording.misc.TestGetId 40 */ 41 public class TestGetId { 42 43 public static void main(String[] args) throws Throwable { 44 Map<Long, Recording> recordings = new HashMap<>(); 45 46 final int iterations = 100; 47 for (int i = 0; i < iterations; ++i) { 48 Recording newRecording = new Recording(); 49 System.out.println("created: " + newRecording.getId()); 50 Recording oldRecording = recordings.get(newRecording.getId()); 51 Asserts.assertNull(oldRecording, "Duplicate recording ID: " + newRecording.getId()); 52 recordings.put(newRecording.getId(), newRecording); 53 54 if (i % 3 == 0) { 55 Recording closeRecording = recordings.remove(recordings.keySet().iterator().next()); 56 Asserts.assertNotNull(closeRecording, "Could not find recording in map. Test error."); 57 closeRecording.close(); 58 System.out.println("closed: " + closeRecording.getId()); 59 } 60 } 61 62 for (Recording r : recordings.values()) { 63 r.close(); 64 } 65 } 66 67 }