Problem with ZK CacheMap

my application saves a Map , this some times made JavaHeapSpace Error. i used org.zkoss.util.CacheMap inst开发者_如何学JAVAead it's JDoc

but i am not sure if it solves the problem or not?

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ZK CacheMap will remove old entities once GC starts (i.e., the memory running low), so it shall help. But, make sure it is OK the removal of old entities is what you want.