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Posted to dev@hc.apache.org by "James Leigh (JIRA)" <ji...@apache.org> on 2013/04/12 21:08:15 UTC
[jira] [Updated] (HTTPCLIENT-1299) FileNotFoundException on Cached
Variant
[ https://issues.apache.org/jira/browse/HTTPCLIENT-1299?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
James Leigh updated HTTPCLIENT-1299:
------------------------------------
Fix Version/s: (was: 4.2.4)
(was: 4.3 Beta1)
Affects Version/s: 4.2.4
4.3 Beta1
> FileNotFoundException on Cached Variant
> ---------------------------------------
>
> Key: HTTPCLIENT-1299
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1299
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: Cache
> Affects Versions: 4.2.3, 4.2.4, 4.3 Beta1
> Environment: OpenJDK 64-Bit Server VM (6b24-1.11.5-0ubuntu1~12.04.1)
> Reporter: James Leigh
> Labels: regression
>
> This bug was introduced in org.apache.http.impl.client.cache.BasicHttpCache in 4.2.3.
> cacheAndReturnResponse takes the response and passes it to storeInCache. It then calls generateResponse with the *same* response resource. The problem is that storeInCache passes the resource to doGetUpdatedParentEntry, which makes a copy and *deletes* the resource it was passed (oldResource).
> This did not occur in 4.2.2 because in 4.2.2 doGetUpdatedParentEntry did not delete the resource. If the resource is being deleted after it is copied in 4.2.3, then it must not be used to generateResponse.
> Here is a stack trace with line numbers.
> BasicHttpCache.doGetUpdatedParentEntry(String, HttpCacheEntry, HttpCacheEntry, String, String) line: 202
> BasicHttpCache$1.update(HttpCacheEntry) line: 119
> ManagedHttpCacheStorage.updateEntry(String, HttpCacheUpdateCallback) line: 134
> BasicHttpCache.storeVariantEntry(HttpHost, HttpRequest, HttpCacheEntry) line: 128
> BasicHttpCache.storeInCache(HttpHost, HttpRequest, HttpCacheEntry) line: 96
> BasicHttpCache.cacheAndReturnResponse(HttpHost, HttpRequest, HttpResponse, Date, Date) line: 265
> CachingHttpClient.handleBackendResponse(HttpHost, HttpRequest, Date, Date, HttpResponse) line: 919
> CachingHttpClient.callBackend(HttpHost, HttpRequest, HttpContext) line: 731
> CachingHttpClient.handleCacheMiss(HttpHost, HttpRequest, HttpContext) line: 510
> CachingHttpClient.execute(HttpHost, HttpRequest, HttpContext) line: 436
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