Merge "Add @Nullable annotations to getOperatorAlphaLong and...
Merge "Add @Nullable annotations to getOperatorAlphaLong and getOperatorAlphaShort to CellIdentity." into pi-dev am: cd6bb724
am: 987eb171
Change-Id: Ic8dc036e7eb287fe327e5dd65524e742e7e3cd6b