[jdk11u-dev] RFR: 8242330: Arrays should be cloned in several JAAS Callback classes [v2]

[Yuri Nesterenko]

> Backport of the fix is clean for 11u in everything but copyright dates.
> CSR copy is filed as [JDK-8317297](https://bugs.openjdk.org/browse/JDK-8317297).

Yuri Nesterenko has updated the pull request incrementally with one additional commit since the last revision:

  Remove javadoc changes

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/2157/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/2157/files/a4a05759..231880f6

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2157&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2157&range=00-01

  Stats: 11 lines in 2 files changed: 0 ins; 4 del; 7 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2157.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2157/head:pull/2157

PR: https://git.openjdk.org/jdk11u-dev/pull/2157