Extending org.hibernate.id.IdentityGenerator causes wrong DDL ------------------------------------------------------------- Key: HHH-7053 URL: https://hibernate.onjira.com/browse/HHH-7053 Project: Hibernate ORM Issue Type: Bug Components: core Affects Versions: 3.6.10 Environment: MySQL/HSQLDB Reporter: Rafal Figas Create class: public class Generator extends org.hibernate.id.IdentityGenerator { } Use it as generator in hbm mapping file: <generator class="sample.Generator" ></generator> It will result in: 1. ID field doesn't get auto_increment attribute (in MySQL). 2. Due to (1) attempt to save entity causes Exception due to: "Field 'IDaccount' doesn't have a default value". Exception occurs with similar message in HSQLDB as well. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira