RFR: 8282723: Add constructors taking a cause to JSSE exceptions [v6]

[Xue-Lei Andrew Fan]

> Please review this small API enhancement to add the usual constructors taking a cause to javax.net.ssl exceptions.  The use of initCause in the JSSE implementation code is updated to use the new constructors accordingly.
> 
> Please review the CSR: https://bugs.openjdk.java.net/browse/JDK-8282724

Xue-Lei Andrew Fan has updated the pull request incrementally with one additional commit since the last revision:

  update copyright years

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Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7722/files
  - new: https://git.openjdk.java.net/jdk/pull/7722/files/61cc7934..5d0fcf2e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7722&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7722&range=04-05

  Stats: 4 lines in 4 files changed: 0 ins; 0 del; 4 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7722.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7722/head:pull/7722

PR: https://git.openjdk.java.net/jdk/pull/7722