[7u6] Request for approval / patch for review : 7178548 : Hashtable ignores threshold default

[Mike Duigou]

Hello all;

This is a small patch for review for 7u6 to correct a problem with the handling of the alternative hashing threshold. 

http://cr.openjdk.java.net/~mduigou/7178548/0/webrev/

The patch also includes a suggested documentation fix and an minor change in WeakHashMap noted in earlier reviews that was too insiginificant for it's own issue.

This change is not a back port because jkd8 uses a different implementation and is unaffected.

When approved and reviewedI intend to push it to
  ssh://hg.openjdk.java.net/jdk7u/jdk7u-dev-gate/jdk

Regards,

Mike