RFR: JDK-8281082: Improve javadoc references to JOSS [v2]

[Joe Darcy]

> The references to JOSS, the Java Object Serialization Specification, are not done consistently in the API javadoc. This should be improved.
> 
> I'll update copyright years before pushing.

Joe Darcy has updated the pull request incrementally with one additional commit since the last revision:

  Update copyrights.

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7315/files
  - new: https://git.openjdk.java.net/jdk/pull/7315/files/3eb97175..a4e1eb79

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7315&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7315&range=00-01

  Stats: 5 lines in 5 files changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7315.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7315/head:pull/7315

PR: https://git.openjdk.java.net/jdk/pull/7315