RFR: JDK-8285263 Minor cleanup could be done in java.security [v6]

[Mark Powers]

> https://bugs.openjdk.java.net/browse/JDK-8285263 Minor cleanup could be done in java.security
> 
> JDK-8273046 is the umbrella bug for this bug. The changes were too large for a single code review, so it was decided to split into smaller chunks. This is one such chunk: 
> 
> open/src/java.base/share/classes/java/security

Mark Powers has updated the pull request incrementally with two additional commits since the last revision:

 - bad grammar
 - Max comments

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

Changes:
  - all: https://git.openjdk.org/jdk/pull/8319/files
  - new: https://git.openjdk.org/jdk/pull/8319/files/44140a01..59b2383e

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=8319&range=05
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=8319&range=04-05

  Stats: 24 lines in 8 files changed: 3 ins; 9 del; 12 mod
  Patch: https://git.openjdk.org/jdk/pull/8319.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/8319/head:pull/8319

PR: https://git.openjdk.org/jdk/pull/8319