--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/test/jdk/jfr/api/flightrecorder/TestGetSettings.java	2019-01-29 11:01:02.449145257 +0800
@@ -0,0 +1,131 @@
+/*
+ * Copyright (c) 2018, 2019, 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.flightrecorder;
+
+import static jdk.testlibrary.Asserts.assertEquals;
+import static jdk.testlibrary.Asserts.assertTrue;
+
+import java.time.Duration;
+import java.util.Map;
+
+import jdk.jfr.Event;
+import jdk.jfr.EventType;
+import jdk.jfr.Recording;
+
+/*
+ * @test
+ * @key jfr
+ * @library /lib/testlibrary
+ * @run main/othervm jdk.jfr.api.flightrecorder.TestGetSettings
+ */
+public class TestGetSettings {
+
+    public static void main(String[] args) throws Throwable {
+        final long minThresholdNanos = 1000000;
+        final String dummyEventPath = "mydummy/event/path";
+        final String myEventSettingName = String.valueOf(EventType.getEventType(MyEvent.class).getId());
+        System.out.println("myEventSettingName=" + myEventSettingName);
+
+        // Settings should be merged to include the most number of events (minimum threshold).
+        Recording r1 = new Recording();
+        r1.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos * 3));
+        r1.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos * 2));
+        r1.enable(dummyEventPath).withThreshold(Duration.ofNanos(minThresholdNanos));
+        r1.start();
+
+        ExpectedSetting[] expectedR1 = {
+            new ExpectedSetting(myEventSettingName, "enabled", "true"),
+            new ExpectedSetting(myEventSettingName, "threshold", Long.toString(minThresholdNanos * 2) + " ns"),
+            new ExpectedSetting(dummyEventPath, "enabled", "true"),
+            new ExpectedSetting(dummyEventPath, "threshold", Long.toString(minThresholdNanos) + " ns"),
+        };
+
+        verifySettings(r1.getSettings(), expectedR1);
+
+        // Start another recording. Recorder settings should be merged from both recordings.
+        Recording r2 = new Recording();
+        r2.enable(MyEvent.class).withThreshold(Duration.ofNanos(minThresholdNanos));
+        r2.disable(dummyEventPath);
+        r2.start();
+
+        ExpectedSetting[] expectedR2 = {
+            new ExpectedSetting(myEventSettingName, "enabled", "true"),
+            new ExpectedSetting(myEventSettingName, "threshold", Long.toString(minThresholdNanos) + " ns"),
+            new ExpectedSetting(dummyEventPath, "enabled", "false")
+        };
+
+        verifySettings(r1.getSettings(), expectedR1);
+        verifySettings(r2.getSettings(), expectedR2);
+
+        // Stop first recording. Recorder should use settings from r2.
+        r1.stop();
+        verifySettings(r2.getSettings(), expectedR2);
+
+        r2.stop();
+        r1.close();
+        r2.close();
+    }
+
+    private static void verifySettings(Map<String, String> settings, ExpectedSetting ... expectedSettings) {
+        for (String name : settings.keySet()) {
+            System.out.printf("Settings: %s=%s%n", name, settings.get(name));
+        }
+        for (ExpectedSetting expected : expectedSettings) {
+            boolean isFound = false;
+            for (String name : settings.keySet()) {
+                if (name.contains(expected.name) && name.contains(expected.option)) {
+                    final String value = settings.get(name);
+                    String msg = String.format("got: %s=%s, expected: %s", name, value, expected.toString());
+                    assertEquals(value, expected.value, msg);
+                    System.out.println("OK: " + msg);
+                    isFound = true;
+                    break;
+                }
+            }
+            assertTrue(isFound, "Missing setting " + expected.toString());
+        }
+    }
+
+    private static class MyEvent extends Event {
+    }
+
+    private static class ExpectedSetting {
+        String name;
+        String option;
+        String value;
+
+        public ExpectedSetting(String name, String option, String value) {
+            this.name = name;
+            this.option = option;
+            this.value = value;
+        }
+
+        @Override
+        public String toString() {
+            return String.format("name=%s, option=%s, value=%s", name, option, value);
+        }
+    }
+}