I have some entity bean with commit option B, it has most getters marked as read-only. I start transaction on client, obtain instance of bean and call couple of those methods. I expect ejbLoad only once, but it is called 3 times (ie before each business method). If I remove read-only attribute, ejbLoad is called only once, as expected. It looks like context gets invalidated in EntitySynchronizationInterceptor, here:
if(isReadOnly && ctx.hasTxSynchronization() == false)
// Keep instance active, but invalidate state
// Invalidate state (there might be other points of entry)
So, the question is - is this a bug or using extensions like read-only flag doesn't guarantee meeting EJB spec?