Integrated: 8258753: StartTlsResponse.close() hangs due to synchronization issues

[Prajwal Kumaraswamy]

On Thu, 18 Mar 2021 07:07:56 GMT, Prajwal Kumaraswamy <pkumaraswamy at openjdk.org> wrote:

> **Scenario:**
> 1. Issue occurs in a muti-threaded environment where SSL socket read() and close() are invoked in parallel.
> 2. SSL socket read is already called.
> 2. close() calls waitForCloseNotify() -> decode() ->....-> socketRead0() to read the close_notify acknowledgment.
> 3. Since there is no synchronization between these read operations, the thread which had already invoked read(), reads the close_notify acknowledgment.
> 4. The thread (which calls waitForCloseNotify() -> read() ) waits indefinitely in socketRead0() and hangs.
> 5. Reproduced and tested the fix against a real time MS AD LDAP server.

This pull request has now been integrated.

Changeset: 41555332
Author:    Prajwal Kumaraswamy <pkumaraswamy at openjdk.org>
Committer: Xue-Lei Andrew Fan <xuelei at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/41555332
Stats:     17 lines in 1 file changed: 8 ins; 2 del; 7 mod

8258753: StartTlsResponse.close() hangs due to synchronization issues

Reviewed-by: xuelei

-------------

PR: https://git.openjdk.java.net/jdk/pull/3068