--- /dev/null 2019-02-07 20:54:51.336000000 +0300 +++ new/test/jdk/jfr/api/event/TestStaticEnable.java 2019-02-08 18:32:49.653688950 +0300 @@ -0,0 +1,86 @@ +/* + * 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.event; + +import java.time.Duration; +import java.util.List; + +import jdk.jfr.Event; +import jdk.jfr.Recording; +import jdk.jfr.consumer.RecordedEvent; +import jdk.test.lib.jfr.Events; + +/** + * @test + * @summary Enable an event from a static function in the event. + * @key jfr + * + * @library /lib / + * @run main/othervm jdk.jfr.api.event.TestStaticEnable + */ +public class TestStaticEnable { + + public static void main(String[] args) throws Exception { + Recording r = new Recording(); + MyEvent.enable(r, true); + r.start(); + MyEvent.create("Hello", 1); + r.stop(); + + List events = Events.fromRecording(r); + Events.hasEvents(events); + for (RecordedEvent event : events) { + System.out.println("Event:" + event); + Events.assertField(event, "msg").equal("Hello"); + Events.assertField(event, "id").equal(1L); + } + r.close(); + } + + + public static class MyEvent extends Event { + public String msg; + long id; + + public static void enable(Recording r, boolean isEnabled) { + if (isEnabled) { + r.enable(MyEvent.class).withThreshold(Duration.ofMillis(0)).withoutStackTrace(); + } else { + r.disable(MyEvent.class); + } + } + + public static void create(String msg, long id) { + MyEvent event = new MyEvent(); + event.msg = msg; + event.id = id; + event.begin(); + event.end(); + event.commit(); + } + } + +}