The Catalog entity instances get created. The query results get listed
3. When the transaction is completed, the entity instances get persisted to the
Oracle database. If a SQL query on the CATALOG table does not list the rows
corresponding to the entity instances, restart the XE database service.
Next, we shall remove two of the entity instances by de-commenting the code
section for removing entity instances in the CatalogSessionEJBBean class
and commenting out the code section for creating entity instances.
Before re-running the build-client and run targets, run the clean target to
delete the files generated from the previous run.