--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/nio/file/SimpleFileVisitor.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,121 @@
+/*
+ * Copyright 2007-2009 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 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.
+ */
+
+package java.nio.file;
+
+import java.nio.file.attribute.BasicFileAttributes;
+import java.io.IOException;
+import java.io.IOError;
+
+/**
+ * A simple visitor of files with default behavior to visit all files and to
+ * re-throw I/O errors.
+ *
+ * <p> Methods in this class may be overridden subject to their general contract.
+ *
+ * @param   <T>     The type of reference to the files
+ *
+ * @since 1.7
+ */
+
+public class SimpleFileVisitor<T extends FileRef> implements FileVisitor<T> {
+    /**
+     * Initializes a new instance of this class.
+     */
+    protected SimpleFileVisitor() {
+    }
+
+    /**
+     * Invoked for a directory before entries in the directory are visited.
+     *
+     * <p> Unless overridden, this method returns {@link FileVisitResult#CONTINUE
+     * CONTINUE}.
+     */
+    @Override
+    public FileVisitResult preVisitDirectory(T dir) {
+        return FileVisitResult.CONTINUE;
+    }
+
+    /**
+     * Invoked for a directory that could not be opened.
+     *
+     * <p> Unless overridden, this method throws {@link IOError} with the I/O
+     * exception as cause.
+     *
+     * @throws  IOError
+     *          With the I/O exception thrown when the attempt to open the
+     *          directory failed
+     */
+    @Override
+    public FileVisitResult preVisitDirectoryFailed(T dir, IOException exc) {
+        throw new IOError(exc);
+    }
+
+    /**
+     * Invoked for a file in a directory.
+     *
+     * <p> Unless overridden, this method returns {@link FileVisitResult#CONTINUE
+     * CONTINUE}.
+     */
+    @Override
+    public FileVisitResult visitFile(T file, BasicFileAttributes attrs) {
+        return FileVisitResult.CONTINUE;
+    }
+
+    /**
+     * Invoked for a file when its basic file attributes could not be read.
+     *
+     * <p> Unless overridden, this method throws {@link IOError} with the I/O
+     * exception as cause.
+     *
+     * @throws  IOError
+     *          With the I/O exception thrown when the attempt to read the file
+     *          attributes failed
+     */
+    @Override
+    public FileVisitResult visitFileFailed(T file, IOException exc) {
+        throw new IOError(exc);
+    }
+
+    /**
+     * Invoked for a directory after entries in the directory, and all of their
+     * descendants, have been visited.
+     *
+     * <p> Unless overridden, this method returns {@link FileVisitResult#CONTINUE
+     * CONTINUE} if the directory iteration completes without an I/O exception;
+     * otherwise this method throws {@link IOError} with the I/O exception as
+     * cause.
+     *
+     * @throws  IOError
+     *          If iteration of the directory completed prematurely due to an
+     *          I/O error
+     */
+    @Override
+    public FileVisitResult postVisitDirectory(T dir, IOException exc) {
+        if (exc != null)
+            throw new IOError(exc);
+        return FileVisitResult.CONTINUE;
+    }
+}