[jdk11u-dev] RFR: 8240256: Better resource cleaning for SunPKCS11 Provider [v2]

[Martin Doerr]

> Backport of JDK-8240256. Actual fix applies cleanly, but tests need resolution:
> 
> - PKCS11Test.java: Needed to integrate manually. Can't remove imports because they are still needed in 11u.
> - MultipleLogins.java: `!Reference.refersTo(null)` is not available in 11. Replaced by `Reference.get() != null`
> - ForceGC.java is needed. Copied from jdk/head.

Martin Doerr has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains one additional commit since the last revision:

  Backport bdeaeb47d0155b9f233274cff90334e8dd761aae

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

Changes:
  - all: https://git.openjdk.java.net/jdk11u-dev/pull/352/files
  - new: https://git.openjdk.java.net/jdk11u-dev/pull/352/files/53fb99d8..036efdd4

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=352&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=352&range=00-01

  Stats: 556 lines in 46 files changed: 263 ins; 129 del; 164 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/352.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/352/head:pull/352

PR: https://git.openjdk.java.net/jdk11u-dev/pull/352