How do you adapt / what do you have to change in your Java JPA code (Entities, etc.) if a column was manually added directly on the database Mysql?

A database that I am using (MySql) was added directly a new column on a table. Was should I change in the java code so my entities can still make operations with the database but now including the new column? Do i have to change just the entity class and add the column or there is more to it? Thank in advance for the help.