code: public synchronized Map<String, MLArray> read(File file) throws IOException
      {
         return read(file, new MatFileFilter(), MEMORY_MAPPED_FILE);
      }
docs: Reads the content of a MAT-file and returns the mapped content.
  <p>
  This method calls
  <code>read(file, new MatFileFilter(), MallocPolicy.MEMORY_MAPPED_FILE)</code>.
  
  @param file
  a valid MAT-file file to be read
  @return the same as <code>{@link #getContent()}</code>
  @throws IOException
  if error occurs during file processing