Sorting a reference column with a null value throws an exception
1. Import the attached .sql file into a MySQL database.
2. Import the attached project into an RapidClipse workspace.
3. Edit the connection data in the persistence.xml file and the table catalog property in each entity.
4. Now start the MainView and click on the Company column in the table header.
5. The following error message is displayed in the RapidClipse console:
The problem with null values in a reference column has been successfully fixed.