--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/java.base/share/classes/jdk/internal/misc/FileSystemOption.java	Tue Nov 06 10:01:16 2018 -0800
@@ -0,0 +1,90 @@
+/*
+ * 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.internal.misc;
+
+import sun.nio.fs.ExtendedOptions;
+
+import java.nio.file.CopyOption;
+import java.nio.file.OpenOption;
+import java.nio.file.WatchEvent;
+
+/**
+ * Internal file system options for jdk.unsupported com.sun.nio.file API use.
+ */
+public final class FileSystemOption<T> {
+    public static final FileSystemOption<Void> INTERRUPTIBLE =
+        new FileSystemOption<>(ExtendedOptions.INTERRUPTIBLE);
+    public static final FileSystemOption<Void> NOSHARE_READ =
+        new FileSystemOption<>(ExtendedOptions.NOSHARE_READ);
+    public static final FileSystemOption<Void> NOSHARE_WRITE =
+        new FileSystemOption<>(ExtendedOptions.NOSHARE_WRITE);
+    public static final FileSystemOption<Void> NOSHARE_DELETE =
+        new FileSystemOption<>(ExtendedOptions.NOSHARE_DELETE);
+    public static final FileSystemOption<Void> FILE_TREE =
+        new FileSystemOption<>(ExtendedOptions.FILE_TREE);
+    public static final FileSystemOption<Void> DIRECT =
+        new FileSystemOption<>(ExtendedOptions.DIRECT);
+    public static final FileSystemOption<Integer> SENSITIVITY_HIGH =
+        new FileSystemOption<>(ExtendedOptions.SENSITIVITY_HIGH);
+    public static final FileSystemOption<Integer> SENSITIVITY_MEDIUM =
+        new FileSystemOption<>(ExtendedOptions.SENSITIVITY_MEDIUM);
+    public static final FileSystemOption<Integer> SENSITIVITY_LOW =
+        new FileSystemOption<>(ExtendedOptions.SENSITIVITY_LOW);
+
+    private final ExtendedOptions.InternalOption<T> internalOption;
+    private FileSystemOption(ExtendedOptions.InternalOption<T> option) {
+        this.internalOption = option;
+    }
+
+    /**
+     * Register this internal option as an OpenOption.
+     */
+    public void register(OpenOption option) {
+        internalOption.register(option);
+    }
+
+    /**
+     * Register this internal option as a CopyOption.
+     */
+    public void register(CopyOption option) {
+        internalOption.register(option);
+    }
+
+    /**
+     * Register this internal option as a WatchEvent.Modifier.
+     */
+    public void register(WatchEvent.Modifier option) {
+        internalOption.register(option);
+    }
+
+    /**
+     * Register this internal option as a WatchEvent.Modifier with the
+     * given parameter.
+     */
+    public void register(WatchEvent.Modifier option, T param) {
+        internalOption.register(option, param);
+    }
+}