context Properties
Session local FlowContextProperties.
If this session is part of an initiating flow, i.e. was obtained from FlowMessaging then this is a read only set of context properties which will be used to determine context on the initiated side. Modifying this set is only possible when session are initiated, see FlowMessaging.
If this session was passed to an initiated flow by Corda, the context properties are associated with the initiating flow at the other end of the connection. They differ from the FlowContextProperties available to all flows via the FlowEngine in that they are not a description of the context of the currently executing flow, but instead the flow which initiated it.
Any calls to modify these contextProperties will throw a CordaRuntimeException, they should be considered immutable.