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Chen commented on COLLECTIONS-520: ---------------------------------- So does this feature need to be implemented? > Add a CopyOnWrite implementation of Map > --------------------------------------- > > Key: COLLECTIONS-520 > URL: https://issues.apache.org/jira/browse/COLLECTIONS-520 > Project: Commons Collections > Issue Type: New Feature > Components: Map > Affects Versions: 4.0 > Reporter: Daniel Feist > Priority: Major > Fix For: 4.x > > > Java provides implementations for List's and Set's but Map is missing. > Jersey uses an implementation > ([com.sun.jersey.client.impl.CopyOnWriteHashMap|https://java.net/projects/jersey/sources/svn/content/trunk/jersey/jersey-client/src/main/java/com/sun/jersey/client/impl/CopyOnWriteHashMap.java]) > but it doesn't fully implement Map because entrySet/keySet/values are not > mutable. > I implemented a CaseInsensitiveCopyOnWriteMap in Mule and while it serves our > purposes it's not 100% complete and isn't thread-safe, and it would be good > to see an implementation in commons. (BTW: I plan to extend from > AsbtractHashedMap once we moved to 4.0/4.1). > See: > [org.mule.util.CopyOnWriteCaseInsensitiveMap|https://github.com/mulesoft/mule/blob/716893e6231be47dccd3cfba9619762e146b4b84/core/src/main/java/org/mule/util/CopyOnWriteCaseInsensitiveMap.java] -- This message was sent by Atlassian Jira (v8.3.4#803005)