ADDITIONAL SYSTEM INFORMATION :
It exists since JDK 8.0 at least.

A DESCRIPTION OF THE PROBLEM :
https://github.com/openjdk/jdk/blob/cba097aaab981799e4bfbcba65be4600e3b67e2b/src/java.sql/share/classes/java/sql/DriverManager.java#L452
https://github.com/openjdk/jdk/blob/cba097aaab981799e4bfbcba65be4600e3b67e2b/src/java.sql/share/classes/java/sql/DriverManager.java#L690

I'm pretty sure
println(" skipping: " + aDriver.getClass().getName());
should be
println(" skipping: " + aDriver.driver.getClass().getName());