--- /dev/null	2020-01-02 04:43:18.583999853 +0000
+++ new/src/share/classes/jdk/jfr/internal/dcmd/DCmdStop.java	2020-01-30 06:27:01.025892698 +0000
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2012, 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.internal.dcmd;
+
+import java.io.IOException;
+import java.nio.file.InvalidPathException;
+import java.nio.file.Paths;
+
+import jdk.jfr.Recording;
+import jdk.jfr.internal.LogLevel;
+import jdk.jfr.internal.LogTag;
+import jdk.jfr.internal.Logger;
+import jdk.jfr.internal.SecuritySupport.SafePath;
+
+/**
+ * JFR.stop
+ *
+ */
+// Instantiated by native
+final class DCmdStop extends AbstractDCmd {
+
+    /**
+     * Execute JFR.stop
+     *
+     * Requires that either <code>name or <code>id</code> is set.
+     *
+     * @param name name or id of the recording to stop.
+     *
+     * @param filename file path where data should be written after recording has
+     *        been stopped, or <code>null</code> if recording shouldn't be written
+     *        to disk.
+     * @return result text
+     *
+     * @throws DCmdException if recording could not be stopped
+     */
+    public String execute(String name, String filename) throws DCmdException {
+        if (Logger.shouldLog(LogTag.JFR_DCMD, LogLevel.DEBUG)) {
+            Logger.log(LogTag.JFR_DCMD, LogLevel.DEBUG, "Executing DCmdStart: name=" + name + ", filename=" + filename);
+        }
+
+        try {
+            SafePath safePath = null;
+            Recording recording = findRecording(name);
+            if (filename != null) {
+                try {
+                    // Ensure path is valid. Don't generate safePath if filename == null, as a user may
+                    // want to stop recording without a dump
+                    safePath = resolvePath(null, filename);
+                    recording.setDestination(Paths.get(filename));
+                } catch (IOException | InvalidPathException  e) {
+                    throw new DCmdException("Failed to stop %s. Could not set destination for \"%s\" to file %s", recording.getName(), filename, e.getMessage());
+                }
+            }
+            recording.stop();
+            reportOperationComplete("Stopped", recording.getName(), safePath);
+            recording.close();
+            return getResult();
+        } catch (InvalidPathException | DCmdException e) {
+            if (filename != null) {
+                throw new DCmdException("Could not write recording \"%s\" to file. %s", name, e.getMessage());
+            }
+            throw new DCmdException(e, "Could not stop recording \"%s\".", name, e.getMessage());
+        }
+    }
+}