Fix: add missing JUL loglevel handling

Signed-off-by: David Goulet <dgoulet@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Version 2.4.0-rc3

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>