[jdk11u-dev] RFR: Merge jdk11u:master

[Goetz Lindenmaier]

Merge tag 11.0.16+6

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Commit messages:
 - Merge
 - 8286855: javac error on invalid jar should only print filename
 - 8286594: (zipfs) Mention paths with dot elements in ZipException and cleanups
 - 8286444: javac errors after JDK-8251329 are not helpful enough to find root cause
 - 8287378: GHA: Update cygwin to fix issues in langtools tests on Windows
 - 8287739: [11u] ProblemList sun/security/ssl/SSLSessionImpl/NoInvalidateSocketException.java
 - 8240132: ProblemList com/sun/jdi/InvokeHangTest.java
 - 8274171: java/nio/file/Files/probeContentType/Basic.java failed on "Content type" mismatches

The webrevs contain the adjustments done while merging with regards to each parent branch:
 - master: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1130&range=00.0
 - jdk11u:master: https://webrevs.openjdk.java.net/?repo=jdk11u-dev&pr=1130&range=00.1

Changes: https://git.openjdk.java.net/jdk11u-dev/pull/1130/files
  Stats: 87 lines in 5 files changed: 38 ins; 38 del; 11 mod
  Patch: https://git.openjdk.java.net/jdk11u-dev/pull/1130.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk11u-dev pull/1130/head:pull/1130

PR: https://git.openjdk.java.net/jdk11u-dev/pull/1130