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.flightrecorder; 27 28 import jdk.jfr.Event; 29 import jdk.jfr.FlightRecorder; 30 31 /** 32 * @test 33 * @summary Check that an IllegalArgumentException is thrown if event is added twice 34 * @key jfr 35 * 36 * @library /lib / 37 * @run main/othervm jdk.jfr.api.flightrecorder.TestPeriodicEventsSameHook 38 */ 39 public class TestPeriodicEventsSameHook { 40 41 private static class MyEvent extends Event { 42 } 43 44 private static class MyHook implements Runnable { 45 @Override 46 public void run() { 47 } 48 } 49 50 public static void main(String[] args) throws Exception { 51 MyHook hook = new MyHook(); 52 FlightRecorder.addPeriodicEvent(MyEvent.class, hook); 53 try { 54 FlightRecorder.addPeriodicEvent(MyEvent.class, hook); 55 throw new Exception("Expected IllegalArgumentException when adding same hook twice"); 56 } catch (IllegalArgumentException iae) { 57 if (!iae.getMessage().equals("Hook has already been added")) { 58 throw new Exception("Expected IllegalArgumentException with message 'Hook has already been added'"); 59 } 60 } 61 } 62 }