docs: protected void copy(final CacheEntry cacheEntry, final ServletOutputStream ostream, final Range range) throws IOException {
  		IOException exception = null;
  
  		final InputStream resourceInputStream = cacheEntry.getResource().streamContent();
  		final InputStream istream = new BufferedInputStream(resourceInputStream, getInputBufferSize());
  		exception = copyRange(istream, ostream, range.start, range.end);
  
  		// Clean up the input stream
  		istream.close();
  
  		// Rethrow any exception that has occurred
  		if (exception != null)
  			throw exception;
  	}