Couldn't initialize OracleLobHandler because Oracle driver classes are not available. Note that OracleLobHandler requires Oracle JDBC driver 9i or higher!; nested exception is ...

mvn clean install unzip .m2\repository\com\oracle\jdbc\ojdbc8\12.2.0.1\ojdbc8-12.2.0.1.jar -d .m2\repository\com\oracle\jdbc\ojdbc8\12.2.0.1\ojdbc8-12.2.0.1 cd ojdbc (this project directory) cp ...

Here we explain the difference between the four JDBC driver types, and how to choose the right JDBC driver for your database-driven Java apps.