BUG-577: Make sure class loading strategy is initialized

Fixes a failure to verify in the controller

Change-Id: I90a516c5a8d88e17b419db2bf02c02ee36eb6cd6
Signed-off-by: Robert Varga <rovarga@cisco.com>
(cherry picked from commit a31b81b2a7c2bda138778bce50b6ac07ae032bbc)
Merge "BUG-577: Make sure class loading strategy is initialized" into stable/hydrogen