A DESCRIPTION OF THE PROBLEM :
Repro is here https://github.com/square/okhttp/pull/6554

Original bug report https://twitter.com/virus_dave/status/1358266888543997952

Using OkHttp on JDK 11 (not 8 or 14) hangs with presto client. Presto client main change is use of SocketChannelSocketFactory reported herehttps://github.com/prestodb/presto/issues/15705

The class above is to workaround another known issue JDK-8131133 related to IPv6

https://github.com/prestodb/presto/blob/master/presto-client/src/main/java/com/facebook/presto/client/SocketChannelSocketFactory.java

REGRESSION : Last worked in version 8u281

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
Checkout this PR. Run the class https://github.com/square/okhttp/blob/73a9830ce95212571652f89d1bb46f3baa4bb0fa/okhttp/src/test/java/okhttp3/SocketChannelTest.kt

uncomment the assumption

assumeFalse(
       socketMode is TlsInstance &&
         socketMode.socketMode == Channel &&
         socketMode.protocol == HTTP_2 &&
         socketMode.tlsExtensionMode == STANDARD,
       "failing for channel and h2"
     )

Also can see SSL Debug via

// recordSslDebug = true

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
Requests work without hanging
ACTUAL -
Requests timeout or hang hard, such that even closing the socket seems to hang.

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https://github.com/square/okhttp/pull/6554/files


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CUSTOMER SUBMITTED WORKAROUND :
Drop down to HTTP/1.1, or avoid SocketChannel

FREQUENCY : always