code: static String getMiddleNameForPrefixingAsAccessorMutatorJavaBeansSpecCompliance(String fieldName) {
          if (fieldName.length() > 1 && Character.isUpperCase(fieldName.charAt(1))) {
              return fieldName;
          }
          return fieldName.substring(0, 1).toUpperCase() + fieldName.substring(1);
      }
docs: Get the middle part of the method name in compliance with the naming convention in the JavaBeans API
  specification.
  
  @param fieldName
  @return