--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/test/jdk/jdk/jfr/api/event/TestIsEnabledMultiple.java	Tue May 15 20:24:34 2018 +0200
@@ -0,0 +1,127 @@
+/*
+ * 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 jdk.jfr.Event;
+import jdk.jfr.EventType;
+import jdk.jfr.Recording;
+import jdk.test.lib.Asserts;
+
+/*
+ * @test
+ * @summary Test Event.isEnabled() with multiple recordings
+ * @key jfr
+ * @library /test/lib
+ * @run main/othervm jdk.jfr.api.event.TestIsEnabledMultiple
+ */
+
+public class TestIsEnabledMultiple {
+
+    enum When {
+        BeforeStart, DuringRecording
+    }
+
+    enum RecState {
+        New, Running
+    }
+
+    enum EnableState {
+        Enabled, Disabled
+    }
+
+    public static void main(String[] args) throws Exception {
+        for (RecState recStateA : RecState.values()) {
+            for (RecState recStateB : RecState.values()) {
+                for (EnableState enableStateA : EnableState.values()) {
+                    for (EnableState enableStateB : EnableState.values()) {
+                        assertEnabled(recStateA, recStateB, enableStateA, enableStateB);
+                    }
+                }
+            }
+        }
+    }
+
+    private static void assertEnabled(RecState recStateA, RecState recStateB, EnableState enableStateA, EnableState enableStateB) {
+
+        Recording a = new Recording();
+        Recording b = new Recording();
+        assertEnablement(false); // no recording running
+
+        if (enableStateA == EnableState.Disabled) {
+            a.disable(MyEvent.class);
+        }
+        if (enableStateA == EnableState.Enabled) {
+            a.enable(MyEvent.class);
+        }
+        if (enableStateB == EnableState.Disabled) {
+            b.disable(MyEvent.class);
+        }
+        if (enableStateB == EnableState.Enabled) {
+            b.enable(MyEvent.class);
+        }
+        if ( enableStateA == EnableState.Disabled && recStateA == RecState.Running) {
+            if ( enableStateB == EnableState.Disabled && recStateB == RecState.Running) {
+                System.out.println();
+            }
+        }
+        if (recStateA == RecState.Running) {
+            a.start();
+        }
+        if (recStateB == RecState.Running) {
+            b.start();
+        }
+
+        System.out.println("Recording a is " + a.getState() + ". Event is " + enableStateA);
+        System.out.println("Recording b is " + b.getState() + ". Event is " + enableStateB);
+        // an event is enabled if at least one recording is running
+        // and the event is on by default or has been enabled.
+        boolean aEnabled = recStateA == RecState.Running && enableStateA == EnableState.Enabled;
+        boolean bEnabled = recStateB == RecState.Running && enableStateB == EnableState.Enabled;
+        boolean enabled = aEnabled || bEnabled;
+        System.out.println("Expected enablement: " + enabled);
+        System.out.println();
+        assertEnablement(enabled);
+        if (recStateA == RecState.Running) {
+            a.stop();
+        }
+        if (recStateB == RecState.Running) {
+            b.stop();
+        }
+        assertEnablement(false); // no recording running
+        a.close();
+        b.close();
+    }
+
+    private static void assertEnablement(boolean enabled) {
+        Asserts.assertEQ(EventType.getEventType(MyEvent.class).isEnabled(), enabled, "Event enablement not as expected");
+    }
+
+    @SuppressWarnings("unused")
+    private static class MyEvent extends Event {
+        public String msg;
+    }
+
+}