RFR: 8274524: SSLSocket.close() hangs if it is called during the ssl handshake [v3]

[Alexey Bakhtin]

On Wed, 3 Nov 2021 16:46:49 GMT, Alexey Bakhtin <abakhtin at openjdk.org> wrote:

>> Please review the patch for JDK-8274524
>> 
>> The fix just adds locks around InputStream read and skip operations to prevent concurrent read from socket.
>> sun/security/ssl jtreg tests passed
>> api/javax_net/ssl/SSLSocket/setUseClientMode jck test passed
>
> Alexey Bakhtin has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Add ClientSocketCloseHang jtreg test

New jtreg test is added to reproduce the issue and verify it.
sun/security/ssl tests passed

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PR: https://git.openjdk.java.net/jdk/pull/5760