--- /dev/null	2018-06-17 23:18:20.806999507 +0800
+++ new/src/share/classes/jdk/jfr/RecordingState.java	2019-01-29 10:58:51.349971850 +0800
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2016, 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;
+
+/**
+ * Indicates a state in the life cycle of a recording.
+ *
+ * @since 9
+ */
+public enum RecordingState {
+
+    /**
+     * The initial state when a {@code Recording} is created.
+     */
+    NEW,
+
+    /**
+     * The recording is scheduled to start with a start time in the future. An
+     * invocation of the {@link Recording#start()} method will transition the
+     * recording into the {@code RUNNING} state.
+     */
+    DELAYED,
+
+    /**
+     * The recording is recording data and an invocation of the {@link Recording#stop()}
+     * method will transition the recording to the {@code STOPPED} state.
+     */
+    RUNNING,
+
+    /**
+     * The recording is stopped and is holding recorded data that can be dumped to
+     * disk. An invocation of the {@link Recording#close()} method will release the
+     * data and transition the recording into the {@code CLOSED} state.
+     */
+    STOPPED,
+
+    /**
+     * The recording is closed and all resources that are associated with the
+     * recording are released. Nothing that can be done with it from this point, and it's
+     * no longer retrievable from the {@code FlightRrecorder.getRecordings()} method.
+     */
+    CLOSED;
+}