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https://issues.apache.org/jira/browse/HTTPCLIENT-717?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Oleg Kalnichevski updated HTTPCLIENT-717:
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Fix Version/s: 3.1.1
> NPE in SimpleHttpConnectionManager.shutdown()
> ---------------------------------------------
>
> Key: HTTPCLIENT-717
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-717
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Affects Versions: 3.1 Final
> Reporter: Sebb
> Fix For: 3.1.1
>
>
> SimpleHttpConnectionManager.shutdown() causes NPE if no connection has been
> created, whereas MultiThreadedHttpConnectionManager.shutdown() does not.
> Simple test case:
> MultiThreadedHttpConnectionManager cm = new
> MultiThreadedHttpConnectionManager();
> cm.shutdown(); // OK
>
> SimpleHttpConnectionManager sm = new SimpleHttpConnectionManager();
> sm.shutdown(); // NPE
> I came across this in JMeter - a sample was using Post with AutoRedirect,
> which (correctly) caused an IllegalArgumentException, and so the connection
> was not created.
> The JMeter code could try to keep track of this, but it would be tedious, and
> it seems to me that SimpleHttpConnectionManager should ignore the shutdown()
> if the connection is null.
> The problem does not arise when using closeIdleConnections(timeout) - unless
> one uses the special value:
> closeIdleConnections(System.currentTimeMillis() - Long.MAX_VALUE)
> but it would probably be sensible to protect against this as well.
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