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https://issues.apache.org/jira/browse/OWB-1455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thomas Andraschko resolved OWB-1455.
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Resolution: Fixed
> [perf] cache negative results of resolveByType
> ----------------------------------------------
>
> Key: OWB-1455
> URL: https://issues.apache.org/jira/browse/OWB-1455
> Project: OpenWebBeans
> Issue Type: Task
> Affects Versions: 4.0.3
> Reporter: Thomas Andraschko
> Assignee: Thomas Andraschko
> Priority: Major
> Fix For: 4.1.0
>
>
> InjectionResolver#implResolveByType already caches successful resolutions in
> resolvedBeansByType, but misses were not stored. Repeated getBeans(Type,
> qualifiers) for the same unsatisfied key therefore rescanned the full
> deployment every time, which is costly for workloads that probe many
> non-existent types (e.g. Mojarra).
> After startup (!startup), store an empty result as Collections.emptySet()
> under the same BeanCacheKey used for hits, so later lookups are O(1) map
> hits. clearCaches() continues to drop these entries with the rest of the
> resolver cache.
> Aligns with the intent of TomEE’s openejb.cache.cdi-type-resolution-failure.
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