Add way to check for release of connections back into pool
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Key: HTTPCLIENT-1104
URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1104
Project: HttpComponents HttpClient
Issue Type: Wish
Components: HttpClient
Reporter: John Karp
Priority: Minor
As the documentation emphasizes, its important to clean up HttpEntities after
use, so they don't tie up the default very small number of connections in the
pool.
However, nothing is provided to HttpClient users with the default classes that
allows them to unit test their code to help verify that they are in fact
properly releasing the connections under all circumstances. One way this could
be done is for the API to expose the number of current leased (taken)
connections in the pool, which would be
connManager.pool.leasedConnections.size() if not for the necessary fields being
protected. If this statistic were published through the API, user unit tests
could check that it is zero when they finish.
A workaround is for the user to subclass both the connection manager and
ConnPoolByRoute and add getter methods. But its kind of a clunky solution, and
I think the API should be written to encourage its users to perform this check.
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