* stable-3.1:
Error Prone: Enable and fix ClassCanBeStatic
AutoRegisterModulesTest: Declare inner classes as static
Fix issue with auto registering ssh commands
Convert plugin's name to lowercase when generate hook name
Update git submodules
Update git submodules
ErrorProne: Increase severity of FunctionalInterfaceClash to ERROR
Revert "LifecycleListener: Mark stop method as default to make it optional"
Update git submodules
LifecycleListener: Mark stop method as default to make it optional
Change-Id: Iaa7655a5cc33970f4925e94c98bfa7be5e01a346
fbe441bafb