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http://www.stripesframework.org/jira/browse/STS-891?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12876#comment-12876
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Frederic Daoud commented on STS-891:
------------------------------------
@Remi, you are correct. Can't put null in ConcurrentHashMap. Our workaround was
to define an object to represent a null:
private static HttpCache nullCache = new HttpCache() {
public Class<? extends Annotation> annotationType() {return
null;}
public int expires() {
return 0;
}
public boolean allow() {
return false;
}
};
So if the value wanting to be put in the map is null, we put nullCache instead.
Conversely, if we get nullCache back from the map, we return null.
> Cache in HttpCacheInterceptor needs to be concurrent
> ----------------------------------------------------
>
> Key: STS-891
> URL: http://www.stripesframework.org/jira/browse/STS-891
> Project: Stripes
> Issue Type: Bug
> Affects Versions: Release 1.5.3
> Reporter: Frederic Daoud
> Assignee: Frederic Daoud
> Fix For: Release 1.5.8, Release 1.6
>
>
> In HttpCacheInterceptor, the cache needs to be a concurrent hash map. In a
> high-volume environment, accessing the cache can lead to race conditions and
> excessively high load.
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