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diff --git a/gcc-4.4.3/libjava/classpath/gnu/java/nio/FileLockImpl.java b/gcc-4.4.3/libjava/classpath/gnu/java/nio/FileLockImpl.java
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+/* FileLockImpl.java -- FileLock associated with a FileChannelImpl.
+   Copyright (C) 2002, 2004, 2005 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package gnu.java.nio;
+
+import java.io.IOException;
+import java.nio.channels.FileLock;
+
+/**
+ * A FileLock associated with a FileChannelImpl.
+ *
+ * @author Michael Koch
+ * @since 1.4
+ */
+public final class FileLockImpl extends FileLock
+{
+  /**
+   * Whether or not this lock is valid, false when channel is closed or
+   * release has been explicitly called.
+   */
+  private boolean valid;
+
+  public FileLockImpl (FileChannelImpl channel, long position,
+                       long size, boolean shared)
+  {
+    super (channel, position, size, shared);
+    valid = true;
+  }
+
+  /**
+   * Releases this lock.
+   */
+  protected void finalize()
+  {
+    try
+      {
+	release();
+      }
+    catch (IOException e)
+      {
+	// Ignore this.
+      }
+  }
+  
+  /**
+   * Whether or not this lock is valid, false when channel is closed or
+   * release has been explicitly called.
+   */
+  public boolean isValid()
+  {
+    if (valid)
+      valid = channel().isOpen();
+    return valid;
+  }
+
+  /**
+   * Releases the lock if it is still valid. Marks this lock as invalid.
+   */
+  public void release() throws IOException
+  {
+    if (isValid())
+      {
+	valid = false;
+	((FileChannelImpl) channel()).unlock(position(), size());
+      }
+  }
+}