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https://issues.apache.org/jira/browse/HTTPCLIENT-1081?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15382680#comment-15382680
 ] 

ASF GitHub Bot commented on HTTPCLIENT-1081:
--------------------------------------------

Github user sebbASF commented on a diff in the pull request:

    https://github.com/apache/jmeter/pull/216#discussion_r71193100
  
    --- Diff: 
src/protocol/http/org/apache/jmeter/protocol/http/sampler/HTTPHC4Impl.java ---
    @@ -147,6 +148,8 @@
         private static final int TIME_TO_LIVE = 
JMeterUtils.getPropDefault("httpclient4.time_to_live", 2000);
     
         private static final String CONTEXT_METRICS = "jmeter_metrics"; // 
TODO hack for metrics related to HTTPCLIENT-1081, to be removed later
    +    
    +    private static final Pattern PORT_PATTERN = Pattern.compile("^\\d+$");
     
    --- End diff --
    
    Does not need anchors


> getMetrics() does not work for HEAD or other early release methods
> ------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1081
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1081
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>            Reporter: Sebb
>             Fix For: 5.0
>
>
> The following code works fine for GET:
>            HttpResponse httpResponse =
> httpClient.execute(httpRequest, localContext);
>            HttpConnection conn = (HttpConnection)
> localContext.getAttribute(ExecutionContext.HTTP_CONNECTION);
>            HttpConnectionMetrics metrics = conn.getMetrics();
> but fails on the getMetrics() call when the request is HEAD:
>        org.apache.http.impl.conn.ConnectionShutdownException
>        at 
> org.apache.http.impl.conn.AbstractClientConnAdapter.assertValid(AbstractClientConnAdapter.java:154)
>        at 
> org.apache.http.impl.conn.AbstractClientConnAdapter.getMetrics(AbstractClientConnAdapter.java:190)
> This is because the getMetrics() method calls assertValid() which checks that 
> the connection has not been released, and the HEAD request is released as 
> soon as it completes, before returning to the caller.
> Possible solutions:
> - don't call assertValid() in getMetrics()
> - store a pointer to the metrics in the local context



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