Just like with PostgreSQL, MySQL does not support nationalized types (e.g. NCLOB).

To replicate this issue, you need to run the following tests using MySQL:

1. org.hibernate.userguide.mapping.basic.NClobCharArrayTest
2. org.hibernate.userguide.mapping.basic.NClobStringTest
3. org.hibernate.userguide.mapping.basic.NClobTest

On the other hand, NVARCHAR is supported:

create table Product (
        id integer not null,
        name varchar(255),
        warranty nvarchar(255),
        primary key (id)
) ENGINE=InnoDB