code: public static void extract(final File aJarFile, final String aFilePath, final File aDestDir) throws IOException {
          extract(new JarFile(aJarFile), aFilePath, aDestDir);
      }
docs: Extract a particular path from a supplied Jar file to a supplied {@link java.io.File} location.
  
  @param aJarFile A Jar file from which to extract
  @param aFilePath The Jar file path of the file to extract
  @param aDestDir The destination directory into which the file should be extracted
  @throws IOException If there is an exception thrown while reading or writing the file