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

Tue Dec 8 07:32:18 UTC 2020

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.

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

Changes: https://git.openjdk.java.net/jdk/pull/1686/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1686&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8257884
  Stats: 8 lines in 1 file changed: 5 ins; 0 del; 3 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1686.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1686/head:pull/1686

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