Pascal Lacombe created HTTPCLIENT-2284:
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Summary: BasicHttpCacheStorage leaking variant keys in root
response's variantMap
Key: HTTPCLIENT-2284
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2284
Project: HttpComponents HttpClient
Issue Type: Bug
Components: HttpCache
Affects Versions: 4.5.13
Reporter: Pascal Lacombe
BasicHttpCacheStorage has a memory leak in the root response's variantMap. When
a variant cached entry is evicted due to CacheMap being too large, the root
cache entry does not remove this variant key in its variantMap. This is a
memory leak that can grow the variantMap indefinitely, or until the root entry
get's evicted itself.
Simplified testcase:
# A request is being sent from a client that contains a header (x-my-variant)
with a hash of the current timestamp.
# The server responds 200, with a cacheable response. The response Vary's on
"x-my-variant"
# These requests repeat, causing:the root CacheEntry to be kept in CacheMap,
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