Is there java.util.concurrent equivalent for WeakHashMap?

Question

Can the following piece of code be rewritten w/o using Collections.synchronizedMap() yet maintaining correctness at concurrency?

Collections.sy         


        

Answer 1

Cafeine is a popular competitor of Guava cache.

- keys automatically wrapped in weak references
- values automatically wrapped in weak or soft references

usage:

LoadingCache graphs = Caffeine.newBuilder()
 .weakKeys()
 .weakValues()
 .build(key -> createExpensiveGraph(key));