RFR [15] 8242230: Whitespace typos, relaxed javadoc, formatting

[Pavel Rappo]

Hello,

Please review the change for https://bugs.openjdk.java.net/browse/JDK-8242230:

  http://cr.openjdk.java.net/~prappo/8242230/webrev.00/

This is a documentation cleanup. There are no code changes involved,
and the changes in documentation are mostly trivial.

The following packages are affected:

    java.lang,
    java.text,
    java.util,
    java.util.logging,
    javax.lang.model.util,
    jdk.internal.reflect

-Pavel