[jira] [Closed] (HTTPCLIENT-2148) fluent Executor volatile access allows NPEs

["Carter Kozak (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-2148?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Carter Kozak closed HTTPCLIENT-2148.
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> fluent Executor volatile access allows NPEs
> -------------------------------------------
>
>                 Key: HTTPCLIENT-2148
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-2148
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: Fluent HC
>            Reporter: Carter Kozak
>            Assignee: Carter Kozak
>            Priority: Major
>             Fix For: 5.0.4, 5.1-beta2
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> The {{org.apache.hc.client5.http.fluent.Executor}} class checks volatile fields for null before loading them a second time for execution. If the field is updated to null at runtime, this can result in a NPE.
> Even when this doesn't result in failures, it's better for performance if we can use a single volatile load rather than two.



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