An exception thrown when exceptions occur in conversation processing. {@link com.google.code.rees.scope.conversation.processing.ConversationManager ConversationManager's} should catch any other exceptions and wrap them with this class to allow for simpleexception mapping for any conversation-related exceptions.
The most important and likely scenario for this exception occurring is when requests come in with conversation IDs for conversations that have already ended or expired.
@author rees.byars