MySQL type corresponds to the Java type Exception scenario

MySQL's bigint unsigned type, corresponding to the Java BigInteger type, when the MyBatis framework is based, if I place the return of a field of the bigint unsigned type in the return type of a map. Even though the generic long is defined in the return parameter of Java, the long type does not take effect because of the generic erase mechanism. When data is fetched from the map, a forced type conversion is required to obtain the data.

MySQL type corresponds to the Java type Exception scenario