1 /* 2 * Copyright (c) 2019, 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.startupargs; 27 28 import jdk.jfr.Event; 29 import jdk.jfr.EventType; 30 import jdk.jfr.FlightRecorder; 31 import jdk.jfr.Name; 32 import jdk.jfr.Recording; 33 34 /** 35 * @test 36 * @summary Start a FlightRecording without any settings (not even default). 37 * @key jfr 38 * @library /lib / 39 * @run main/othervm jdk.jfr.startupargs.TestStartNoSettings 40 * -XX:StartFlightRecording=settings=none 41 */ 42 public class TestStartNoSettings { 43 44 @Name("UserEvent") 45 static class UserEvent extends Event { 46 } 47 48 public static void main(String[] a) throws Exception { 49 boolean userEnabled = false; 50 try (Recording r = new Recording()) { 51 r.start(); 52 UserEvent e = new UserEvent(); 53 e.commit(); 54 for (EventType et : FlightRecorder.getFlightRecorder().getEventTypes()) { 55 if (et.isEnabled()) { 56 if (!et.getName().equals("UserEvent")) { 57 throw new Exception("Only 'UserEvent' should be enabled"); 58 } 59 userEnabled = true; 60 } 61 } 62 } 63 64 if (!userEnabled) { 65 throw new Exception("Expected 'UserEvent' to be enabled with -XX:StartFlightRecording=settings=none"); 66 } 67 } 68 }