#22 Concurrent modification conflict in AgentEndpoint

[Jiri Hodik]

The functionality of the method AgentEndpoint.provideData(…) is not
clear. As it is provided as an interface of an agent there is either
concurrent modification conflict or unpredictable data loosing. In a very
special situation when the agent puts some data to its RuntimeDataHolder
under some key (e.g., "TopSecretDataForBebe") and somebody else rewrite
them using provideData("TopSecretDataForBebe", ...) before Bebe’s
application requests them (using requestData("TopSecretDataForBebe", ...),
the data read by Bebe are the data altered by someone else but they seem to
be the data from the agent.

This is not problem only in intended data forging, such functionality may
be critical e.g. during review when random events supported by “magic
numbers” in code may invoke emergent behavior of the system that we have
not seen before :o)