So, the question is: does a hashmap implementation exist where accessing and nor... | Hacker News

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		sophacles on Feb 4, 2011 \| parent \| context \| favorite \| on: A Beautiful Race Condition So, the question is: does a hashmap implementation exist where accessing and normal writing is not serialized, but expanding the table has the appropriate locks?

johnm on Feb 5, 2011 | [–]

In Java, use ConcurrentHashMap.

If you're particularly interested in pushing this to the edge, check out Cliff Click's non-block hash map.

mlni on Feb 4, 2011 | [–]

Here you go:

Collections.synchronizedMap(new HashMap());

riffraff on Feb 5, 2011 | [–]

he wrote "accessing is not serialized"

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