If a large project has too many dependencies between resources, the number of links may get as big as a square of the number of resources. Storing and iterating collections of links in this case will deteriorate the performance. We can set a reasonable limit, say 10000, and if reached, report info message to log. Then, we can either do full validation each time instead of incremental, or add to log, that validation may fail fail to reevaluate some resources dependent on changed ones.