https://github.com/nettyplus/netty-leak-detector-junit-extension

Fixes #2042 

This is a typical TOCTOU (time-of-check/time-of-use) race
https://en.wikipedia.org/wiki/Time-of-check_to_time-of-use.
The NPE was occurring because the channel field could be set to null by
another thread between the check and its use:

if (channel != null) {                 // time-of-check
    Channels.setDiscard(channel);      //  time-of-use
    Channels.silentlyCloseChannel(channel);
}

By copying channel into a local variable in one atomic read, we ensure
that—even if another thread changes the field—the local reference
remains valid.

P.S. It is hard to write a deterministic test that fails consistently,
so this PR only includes the code fix.

---------

Co-authored-by: prat <pratikkatti4@gmial.com>

Closes #1884

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

…0 in /client (#2092)

Bumps org.apache.tomcat.embed:tomcat-embed-core from 10.1.39 to 10.1.40.


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…1 in /client (#2096)

Bumps org.apache.tomcat.embed:tomcat-embed-core from 10.1.40 to 10.1.41.


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…2 in /client (#2099)

Bumps org.apache.tomcat.embed:tomcat-embed-core from 10.1.41 to 10.1.42.


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…nt (#2101)

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…2103)

Netty 4.2 changes the default for hostname verification for TLS clients,
so that it is now enabled by default.

As a result, clients that rely on the default being _off_ will find
themselves unable to disable it.

Instead, clients should explicitly configure their desired endpoint
identification algorithm in all cases.

Since Netty 4.1.112 we also have a convenient method on the
`SslContextBuilder` for doing this, so we don't need multiple
round-trips through `SSLParameters`.

This PR changes the `DefaultSslEngineFactory` to make use of this
method, so it always configures the endpoint identification algorithm to
match the desired setting of
`AsyncHttpClientConfig..isDisableHttpsEndpointIdentificationAlgorithm()`.

…4 in /client (#2105)

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Motivation:
AHC only supports HTTP proxy at the moment, not HTTPS. HTTPS is required
in many environments because CONNECT has to be encrypted to prevent
eavesdropping.

Modification:
Added HTTPS proxy support.

Fixes:
#1907