Hibernate 3.2.4GA incompatiable with MySQL by using JPA ------------------------------------------------------- Key: HHH-2618 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2618 Project: Hibernate3 Issue Type: Bug Components: core Affects Versions: 3.2.4 Environment: Hibernate 3.2.4GA MySQL 4.0.20-standard Reporter: Anthony Tam I have downloaded the HelloWorld example and try to use Hibernate. I have changed the persistence.xml to use the MySQL database. The configuration I changed are <property name="hibernate.connection.driver_class" value="com.mysql.jdbc.Driver" /> <property name="hibernate.connection.url" value="jdbc:mysql://(mysql database)" /> <property name="hibernate.connection.username" value="username" /> <property name="hibernate.connection.password" value="password" /> <property name="hibernate.dialect" value="org.hibernate.dialect.MySQLDialect" /> When I am using the Hibernate core shipped with the example, that is version 3.2.0.cr5, it works totally fine. After that, I download the latest Hibernate core from your website and replace the hibernate3.jar with the latest one, I encounter the an error when I try to presist the Message object into the database. The error is a SQLError bounced from MySQL saying that the field of ID is not supplied. When I turn on the SQL debug, I found that in version 3.2.0.cr5, the ID field is set to NULL and in version 3.2.4GA, the ID field is ?. I can figure a work around to tempory fix this issue, I use the annotation @org.hibernate.annotations.Entity( dynamicInsert = true ) to ask hibernate to dunamic generate the SQL statment and then the ID field will not be supplied in the insert SQL. -- This message is automatically generated by JIRA. - If you think it was sent incorrectly contact one of the administrators: http://opensource.atlassian.com/projects/hibernate/secure/Administrators.... - For more information on JIRA, see: http://www.atlassian.com/software/jira