org.apache.jmeter.control
Interfaces 
Controller
ReplaceableController
Classes 
ForeachController
GenericController
GenericController.Test
IfController
IfController.Test
IncludeController
InterleaveControl
InterleaveControl.Test
LoopController
LoopController.Test
ModuleController
OnceOnlyController
OnceOnlyController.Test
RandomController
RandomOrderController
RandomOrderController.Test
RunTime
RunTime.Test
SwitchController
SwitchController.Test
ThroughputController
ThroughputController.Test
TransactionController
WhileController
WhileController.Test
Exceptions 
NextIsNullException
NoEntryException