Support Article
Unable to connect to an external Oracle database
SA-71147
Summary
Unable to connect to an external Oracle database.
Error Messages
Java Exception: java.lang.SecurityException: sealing violation: package oracle.jdbc.driver is sealed
Steps to Reproduce
- Create a new database instance.
- Click Test Connectivity.
Root Cause
A sealing violation occurred. That is, some classes from a sealed package were loaded from two different locations (directories or jar files).
The ojdbc8.jar file was placed in the library and imported from the Import wizard.
Resolution
Perform the following local-change:
- Remove the entry for ojdbc8.jar file imported from the pr_engineclasses table.
- Restart the server.
Published January 15, 2019 - Updated December 2, 2021
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