private void resolveTypeHandler() {
   if (resultMapping.typeHandler == null && resultMapping.javaType != null) {
     Configuration configuration = resultMapping.configuration;
     TypeHandlerRegistry typeHandlerRegistry = configuration.getTypeHandlerRegistry();
     resultMapping.typeHandler =
         typeHandlerRegistry.getTypeHandler(resultMapping.javaType, resultMapping.jdbcType);
   }
 }
 public Builder(
     Configuration configuration, String property, String column, TypeHandler<?> typeHandler) {
   this(configuration, property);
   resultMapping.column = column;
   resultMapping.typeHandler = typeHandler;
 }
 public Builder typeHandler(TypeHandler<?> typeHandler) {
   resultMapping.typeHandler = typeHandler;
   return this;
 }