code: public static Class<?> getObjectClassOfPrimitve(Class<?> primitive) {
          Class<?> objectClass = PRIMITIVE_TO_WRAPPER.get(primitive);
          if (objectClass != null) {
              return objectClass;
          }
  
          return primitive;
      }
docs: Returns the wrapper class of the given primitive class or the given class.
  
  @param primitive The primitive class
  @return The wrapper class or the given class