code: static String[] getProp(final Map<String, String[]> prop, final String propertyName) {
          String[] result = null;
          if (prop != null) {
              for (final Entry<String, String[]> entry : prop.entrySet()) {
                  if (entry.getKey().equalsIgnoreCase(propertyName)) {
                      result = entry.getValue();
                  }
              }
          }
          return result;
      }
docs: Ignore case on property name
  
  @param prop
  @param propertyName
  @return The property value