/* * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package jdk.jfr.api.flightrecorder; import static jdk.test.lib.Asserts.assertEquals; import static jdk.test.lib.Asserts.assertFalse; import static jdk.test.lib.Asserts.assertTrue; import java.util.List; import jdk.jfr.FlightRecorder; import jdk.jfr.Recording; /* * @test * @key jfr * @library /test/lib * @run main/othervm jdk.jfr.api.flightrecorder.TestGetRecordings */ public class TestGetRecordings { public static void main(String[] args) throws Throwable { FlightRecorder recorder = FlightRecorder.getFlightRecorder(); // Recording should be empty at start. List recordings = recorder.getRecordings(); assertTrue(recordings.isEmpty(), "recordings should be empty at start"); // Create first recording Recording r1 = new Recording(); recordings = recorder.getRecordings(); assertEquals(recordings.size(), 1, "Expected 1 recording"); assertTrue(recordings.contains(r1), "r1 should be in list"); // Create second recording Recording r2 = new Recording(); recordings = recorder.getRecordings(); assertEquals(recordings.size(), 2, "Expected 2 recordings"); assertTrue(recordings.contains(r2), "r2 should be in list"); assertTrue(recordings.contains(r1), "r1 should still be in list"); // Close first recording r1.close(); recordings = recorder.getRecordings(); assertEquals(recordings.size(), 1, "Expected 1 remaining recording"); assertTrue(recordings.contains(r2), "r2 should still be in list"); assertFalse(recordings.contains(r1), "r1 should be removed"); // Close second recording r2.close(); recordings = recorder.getRecordings(); assertTrue(recordings.isEmpty(), "recordings should be empty after close"); // Create recording with new Recording() Recording r3 = new Recording(); recordings = recorder.getRecordings(); assertTrue(recordings.contains(r3 ), "new Recording() should be in list"); r3.close(); } }