[jdk11u-dev] RFR: 8315422: getSoTimeout() would be in try block in SSLSocketImpl

[Matthias Baesken]

needed manual adjustment because of different instanceof in 11

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

Commit messages:
 - Backport 2264667bba2311b568257a933813fa76a9e75313

Changes: https://git.openjdk.org/jdk11u-dev/pull/2869/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2869&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8315422
  Stats: 22 lines in 1 file changed: 8 ins; 7 del; 7 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2869.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2869/head:pull/2869

PR: https://git.openjdk.org/jdk11u-dev/pull/2869