sometimes ddl is not recreated correctly when entity is changed

EXECUTE: Create JPA Project (Hibernate JPA2) EXECUTE: Add libraries into project (Hibernate 4.0.1) EXECUTE: Generate entities from tables EXECUTE: Generate table from entities, see DDL EXECUTE: Set hibernate console to Hibernate 4.0, click OK EXECUTE: Add new field into entity EXECUTE: Re-Generate table from entities, see DDL ERROR: new field is missing