In SDC onboarding, caught exceptions are often written to the log with the DEBUG debug and without any context-specific message. This silences up static analysis tools and in some case doesn't allow to handle the exceptions properly (e.g. propagate as a cause, print to the log with a meaningful message, etc).

Attaching a log of searching all Java files with regular expression:

\.\s*debug\s*(\s*\"\s*\"\s*,

All unnecessary Logger members must be removed (some were introduced just to write this debug message).