--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/windows/classes/sun/nio/fs/WindowsException.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,109 @@
+/*
+ * 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.  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 sun.nio.fs;
+
+import java.nio.file.*;
+import java.io.IOException;
+
+import static sun.nio.fs.WindowsConstants.*;
+
+/**
+ * Internal exception thrown when a Win32 calls fails.
+ */
+
+class WindowsException extends Exception {
+    static final long serialVersionUID = 2765039493083748820L;
+
+    private int lastError;
+    private String msg;
+
+    WindowsException(int lastError) {
+        this.lastError = lastError;
+        this.msg = null;
+    }
+
+    WindowsException(String msg) {
+        this.lastError = 0;
+        this.msg = msg;
+    }
+
+    int lastError() {
+        return lastError;
+    }
+
+    String errorString() {
+        if (msg == null) {
+            msg = WindowsNativeDispatcher.FormatMessage(lastError);
+            if (msg == null) {
+                msg = "Unknown error: 0x" + Integer.toHexString(lastError);
+            }
+        }
+        return msg;
+    }
+
+    @Override
+    public String getMessage() {
+        return errorString();
+    }
+
+    private IOException translateToIOException(String file, String other) {
+        // not created with last error
+        if (lastError() == 0)
+            return new IOException(errorString());
+
+        // handle specific cases
+        if (lastError() == ERROR_FILE_NOT_FOUND || lastError() == ERROR_PATH_NOT_FOUND)
+            return new NoSuchFileException(file, other, null);
+        if (lastError() == ERROR_FILE_EXISTS || lastError() == ERROR_ALREADY_EXISTS)
+            return new FileAlreadyExistsException(file, other, null);
+        if (lastError() == ERROR_ACCESS_DENIED)
+            return new AccessDeniedException(file, other, null);
+
+        // fallback to the more general exception
+        return new FileSystemException(file, other, errorString());
+    }
+
+    void rethrowAsIOException(String file) throws IOException {
+        IOException x = translateToIOException(file, null);
+        throw x;
+    }
+
+    void rethrowAsIOException(WindowsPath file, WindowsPath other) throws IOException {
+        String a = (file == null) ? null : file.getPathForExceptionMessage();
+        String b = (other == null) ? null : other.getPathForExceptionMessage();
+        IOException x = translateToIOException(a, b);
+        throw x;
+    }
+
+    void rethrowAsIOException(WindowsPath file) throws IOException {
+        rethrowAsIOException(file, null);
+    }
+
+    IOException asIOException(WindowsPath file) {
+        return translateToIOException(file.getPathForExceptionMessage(), null);
+    }
+
+}