Sequence: 
Press Ctrl
Press J
Release J
Release Ctrl

Debug [Main]: KeyPress event = 16777249 KeyId = 16777249
Debug [Main]: KeyPress event = 16777249 KeyId = 16777249
Debug [Main]: KeyPress event = 74 KeyId = 74
Debug [Main]: KeyRelease event = 16777249 AutoRepeat = false KeyId = 16777249
Debug [Main]: KeyRelease event = 16777249 AutoRepeat = false KeyId = 16777249

No release event is delivered for releasing J.