code: private String[] getCopyFrom(int from, String[] propertyKeyArray) {
  		return Arrays.copyOfRange(propertyKeyArray, from,
  				propertyKeyArray.length);
  	}
docs: Copies a given {@link String} array from a given start index to the end.
  
  @param from
  start index for copying
  @param propertyKeyArray
  a {@link String} array
  @return a copy of the {@link String} array