diff -r 115e09b7a004 -r 3acf8e5e2ca0 jdk/test/java/nio/file/FileSystem/Basic.java
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/test/java/nio/file/FileSystem/Basic.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2008-2009 Sun Microsystems, Inc.  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.
+ *
+ * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/* @test
+ * @bug 4313887
+ * @summary Unit test for java.nio.file.FileSystem
+ * @library ..
+ */
+
+import java.nio.file.*;
+import java.nio.file.attribute.*;
+import java.io.IOException;
+
+/**
+ * Simple santity checks for java.nio.file.FileSystem
+ */
+public class Basic {
+
+    static void check(boolean okay, String msg) {
+        if (!okay)
+            throw new RuntimeException(msg);
+    }
+
+    static void checkSupported(FileSystem fs, String... views) {
+        for (String view: views) {
+            check(fs.supportedFileAttributeViews().contains(view),
+                "support for '" + view + "' expected");
+        }
+    }
+
+    public static void main(String[] args) throws IOException {
+        FileSystem fs = FileSystems.getDefault();
+
+        // close should throw UOE
+        try {
+            fs.close();
+            throw new RuntimeException("UnsupportedOperationException expected");
+        } catch (UnsupportedOperationException e) { }
+        check(fs.isOpen(), "should be open");
+
+        check(!fs.isReadOnly(), "should provide read-write access");
+
+        check(fs.provider().getScheme().equals("file"),
+            "should use 'file' scheme");
+
+        // santity check method - need to re-visit this in future as I/O errors
+        // are possible
+        for (FileStore store: fs.getFileStores()) {
+            System.out.println(store);
+        }
+
+        // sanity check supportedFileAttributeViews
+        checkSupported(fs, "basic");
+        String os = System.getProperty("os.name");
+        if (os.equals("SunOS"))
+            checkSupported(fs, "posix", "unix", "owner", "acl", "xattr");
+        if (os.equals("Linux"))
+            checkSupported(fs, "posix", "unix", "owner", "dos", "xattr");
+        if (os.equals("Windows"))
+            checkSupported(fs, "owner", "dos", "acl", "xattr");
+    }
+}