RFR: 8257884: Re-enable sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java as automatic test

[Xue-Lei Andrew Fan]

On Tue, 8 Dec 2020 07:27:07 GMT, Christoph Langer <clanger at openjdk.org> wrote:

> The test sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java caused sporadic noise because sometimes it opens more file handles than expected. It was moved to a manual test to quiesce this ([JDK-8257670](https://bugs.openjdk.java.net/browse/JDK-8257670))
> 
> It would be good, however, to have this test as an automatic test to be able to spot potential regressions. The threshold for windows should be adapted.

Marked as reviewed by xuelei (Reviewer).

test/jdk/sun/security/ssl/SSLSocketImpl/SSLSocketLeak.java line 61:

> 59:         System.out.println("FDs in the end: " + fds_end);
> 60: 
> 61:         if ((fds_end - fds_start) > (NUM_TEST_SOCK / OPEN_HANDLE_GROWTH_THRESHOLD)) {

It looks like the test may still fail intermittently.  But let's do it for now and see if it is reliable to be an automation test case.

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PR: https://git.openjdk.java.net/jdk/pull/1686