Solved: Upgrading from ojdbc8.jar didn’t help. The issue was /web/WEB-INF/lib/jconn4.jar used for a Sybase integration. Removing it resolved the issue, though I don’t know why since oracle.jdbc.OracleDriver is not a class in that JAR.
Compass posts on how to deal with this:
- https://community.sailpoint.com/t5/IdentityIQ-Forum/IIQ-Console-Login-Issue-after-Java-Update-from-Oracle-Java-to/m-p/256383/highlight/true#M190238
- https://community.sailpoint.com/t5/IdentityIQ-Forum/Strange-IIQ-console-error-Could-not-initialize-class-sun-text/m-p/168592
- https://community.sailpoint.com/t5/Other-Documents/Connector-Classloader/ta-p/157873