--- /dev/null	2013-03-06 13:58:44.561061889 +0400
+++ new/test/java/io/File/BlockIsDirectory.java	2013-03-06 14:14:33.914335237 +0400
@@ -0,0 +1,63 @@
+/*
+ * Copyright (c) 1998, 2013, 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.
+ *
+ * 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.
+ */
+
+/* @test
+   @bug 4113217
+   @summary Test File.isDirectory on block device
+ */
+
+import java.io.*;
+import java.util.*;
+
+public class BlockIsDirectory {
+    public static void main( String args[] ) throws Exception {
+        String osname = System.getProperty("os.name");
+        if (osname.equals("SunOS")) {
+            File dir = new File("/dev/dsk");
+            String dirList[] = dir.list();
+
+            File aFile = new File( "/dev/dsk/" + dirList[0] );
+
+            boolean result = aFile.isDirectory();
+            if (result == true)
+                throw new RuntimeException(
+                    "IsDirectory returns true for block device.");
+        }
+        if (osname.equals("Linux")) {
+            File dir = new File("/dev/ide0");
+            if (dir.exists()) {
+                boolean result = dir.isDirectory();
+                if (result == true)
+                    throw new RuntimeException(
+                        "IsDirectory returns true for block device.");
+            }
+            dir = new File("/dev/scd0");
+            if (dir.exists()) {
+                boolean result = dir.isDirectory();
+                if (result == true)
+                    throw new RuntimeException(
+                        "IsDirectory returns true for block device.");
+            }
+        }
+    }
+}