--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/solaris/classes/sun/nio/fs/UnixException.java	Sun Feb 15 12:25:54 2009 +0000
@@ -0,0 +1,113 @@
+/*
+ * 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;
+
+/**
+ * Internal exception thrown by native methods when error detected.
+ */
+
+class UnixException extends Exception {
+    static final long serialVersionUID = 7227016794320723218L;
+
+    private int errno;
+    private String msg;
+
+    UnixException(int errno) {
+        this.errno = errno;
+        this.msg = null;
+    }
+
+    UnixException(String msg) {
+        this.errno = 0;
+        this.msg = msg;
+    }
+
+    int errno() {
+        return errno;
+    }
+
+    void setError(int errno) {
+        this.errno = errno;
+        this.msg = null;
+    }
+
+    String errorString() {
+        if (msg != null) {
+            return msg;
+        } else {
+            return new String(UnixNativeDispatcher.strerror(errno()));
+        }
+    }
+
+    @Override
+    public String getMessage() {
+        return errorString();
+    }
+
+    /**
+     * Map well known errors to specific exceptions where possible; otherwise
+     * return more general FileSystemException.
+     */
+    private IOException translateToIOException(String file, String other) {
+        // created with message rather than errno
+        if (msg != null)
+            return new IOException(msg);
+
+        // handle specific cases
+        if (errno() == UnixConstants.EACCES)
+            return new AccessDeniedException(file, other, null);
+        if (errno() == UnixConstants.ENOENT)
+            return new NoSuchFileException(file, other, null);
+        if (errno() == UnixConstants.EEXIST)
+            return new FileAlreadyExistsException(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(UnixPath file, UnixPath other) throws IOException {
+        String a = (file == null) ? null : file.getPathForExecptionMessage();
+        String b = (other == null) ? null : other.getPathForExecptionMessage();
+        IOException x = translateToIOException(a, b);
+        throw x;
+    }
+
+    void rethrowAsIOException(UnixPath file) throws IOException {
+        rethrowAsIOException(file, null);
+    }
+
+    IOException asIOException(UnixPath file) {
+        return translateToIOException(file.getPathForExecptionMessage(), null);
+    }
+}