Merge branch 'main' of https://github.com/robaho/httpserver

Merge branch 'main' of https://github.com/robaho/httpserver

some DRY with the test support client

fix issue robaho#17 - duplicate header count more than 2 causes excep…

…tion (robaho#18)

* Fix a bug if multiple headers have the same name

* make slightly more efficient to avoid array allocation (most likely). change instanceof cases to use pattern matching for consistency

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Co-authored-by: Pierre Viret <pierre.viret@postfinance.ch>
Co-authored-by: robert engels <robaho@users.noreply.github.com>

fix issue robaho#16 Unable to get client certificate because HttpsExc…

…hange.getSSLSession() returns null

fix issue robaho#15 HttpsConfigurator.configure method not executed f…

…or https connections

update readme

version 1.0.18

update readme

version 1.0.14