Trivial Description
Class TestUtils (in the "test" part of the repository) contains a "serializeAndRecover" method that catches "IOException" and "ClassNotFoundException" and just returns "null".
When testing code changes, some unit tests can thus throw "NullPointerException". Even if the returned value is checked for "null", there is no trace as to what caused it (the original stack trace is lost).
I propose to wrap the exception in a "RuntimeException" and rethrow it.