regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

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  Unless required by applicable law or agreed to in writing,
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DEFAULT_BUFFER_SIZE = 4096; private void IOUtil(); public static void copy(java.io.InputStream, java.io.OutputStream) throws java.io.IOException; public static void copy(java.io.InputStream, java.io.OutputStream, int) throws java.io.IOException; public static void copy(java.io.Reader, java.io.Writer) throws java.io.IOException; public static void copy(java.io.Reader, java.io.Writer, int) throws java.io.IOException; public static void copy(java.io.InputStream, java.io.Writer) throws java.io.IOException;...