oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.sql.SQLDataException, msg=ORA-01882: timezone region not found

oracle.jbo.JboException: JBO-29000: Unexpected exception caught: java.sql.SQLDataException,
msg=ORA-01882: timezone region  not found


Solution:

1. In the Project properties of (Model and ViewController) go by double clicking on them.
2.Go to Run/Debug/Profile on the Left Pane.
3.If you are using Project Settings click on Edit by selecting your Profile most of the cases it is Default.
4.Select Launch Settings on the left pane and in Java option enter this value Note: you can change according to your Timezone.
-Duser.timezone="+06:00"
5.click OK and OK again Save your project exit JDeveloper and open again.
6. Run your application again.

you can avoid this by setting Time zone in java options in the default Project properties of Jdeveloper so any new project you add it will automatically contain the Time zone settings.