Hi,
please make sure to use driver for Java 8 e.g. the ojdbc8.jar driver since versions vor Java 1.4 e.g. ojdbc14.jar do not support the isValid method which we use to test the connection. You can download the latest version from here. The Oracle 12.2.0.1 JDBC Driver should be backward compatible and should work with your oracle 10G db.
Bye
Tobias.
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