--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/event/gc/configuration/TestGCConfigurationEvent.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,112 @@
+/*
+ * Copyright (c) 2013, 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.event.gc.configuration;
+
+import static jdk.test.lib.Asserts.assertGreaterThanOrEqual;
+
+import java.util.List;
+
+import jdk.jfr.Recording;
+import jdk.jfr.consumer.RecordedEvent;
+import jdk.test.lib.jfr.EventNames;
+import jdk.test.lib.jfr.EventVerifier;
+import jdk.test.lib.jfr.Events;
+
+/*
+ * @test
+ * @key jfr
+ * @requires (vm.gc == "Parallel" | vm.gc == null)
+ *           & vm.opt.ExplicitGCInvokesConcurrent != true
+ * @library /test/lib /test/jdk
+ * @run main/othervm -XX:+UnlockExperimentalVMOptions -XX:-UseFastUnorderedTimeStamps -XX:+UseParallelGC -XX:+UseParallelOldGC -XX:ParallelGCThreads=3 -XX:ConcGCThreads=2 -XX:+UseDynamicNumberOfGCThreads -XX:-ExplicitGCInvokesConcurrent -XX:-DisableExplicitGC -XX:MaxGCPauseMillis=800 -XX:GCTimeRatio=19 jdk.jfr.event.gc.configuration.TestGCConfigurationEvent
+ */
+public class TestGCConfigurationEvent {
+    public static void main(String[] args) throws Exception {
+        Recording recording = new Recording();
+        recording.enable(EventNames.GCConfiguration);
+        recording.start();
+        recording.stop();
+        List<RecordedEvent> events = Events.fromRecording(recording);
+        assertGreaterThanOrEqual(events.size(), 1, "Expected at least 1 event");
+        GCConfigurationEventVerifier verifier = new GCConfigurationEventVerifier(events.get(0));
+        verifier.verify();
+    }
+}
+
+class GCConfigurationEventVerifier extends EventVerifier {
+    public GCConfigurationEventVerifier(RecordedEvent event) {
+        super(event);
+    }
+
+    @Override
+    public void verify() throws Exception {
+        verifyYoungGCIs("ParallelScavenge");
+        verifyOldGCIs("ParallelOld");
+        verifyParallelGCThreadsIs(3);
+        verifyConcurrentGCThreadsIs(2);
+        verifyUsesDynamicGCThreadsIs(true);
+        verifyIsExplicitGCConcurrentIs(false);
+        verifyIsExplicitGCDisabledIs(false);
+        verifyPauseTargetIs(800);
+        verifyGCTimeRatioIs(19);
+    }
+
+    private void verifyYoungGCIs(String expected) throws Exception {
+        verifyEquals("youngCollector", expected);
+    }
+
+    private void verifyOldGCIs(String expected) throws Exception {
+        verifyEquals("oldCollector", expected);
+    }
+
+    private void verifyParallelGCThreadsIs(int expected) throws Exception {
+        verifyEquals("parallelGCThreads", expected);
+    }
+
+    private void verifyConcurrentGCThreadsIs(int expected) throws Exception {
+        verifyEquals("concurrentGCThreads", expected);
+    }
+
+    private void verifyUsesDynamicGCThreadsIs(boolean expected) throws Exception {
+        verifyEquals("usesDynamicGCThreads", expected);
+    }
+
+    private void verifyIsExplicitGCConcurrentIs(boolean expected) throws Exception {
+        verifyEquals("isExplicitGCConcurrent", expected);
+    }
+
+    private void verifyIsExplicitGCDisabledIs(boolean expected) throws Exception {
+        verifyEquals("isExplicitGCDisabled", expected);
+    }
+
+    private void verifyPauseTargetIs(long expected) throws Exception {
+        verifyEquals("pauseTarget", expected);
+    }
+
+    private void verifyGCTimeRatioIs(int expected) throws Exception {
+        verifyEquals("gcTimeRatio", expected);
+    }
+}