Fix RulesIntegrationTest Unit Test

In class RulesIntegrationTest all tests fail. A common error between all failing tests is the error Error executing DDL "create table <db_table_name>" via JDBC [Syntax error in SQL statement "create table <db_table_name>...], org.hibernate.tool.schema.spi.CommandAcceptanceException: Error executing DDL. Investigate why it fails (is it due to wrong assertion declaration or due to breaking changes in the main code?) and fix it.

Problem seems similar with org.etsi.osl.portal.apiIssues->#6. If it is solved, use it as a guide.