What the Duration of negative Infinity mean?

[Richard Bair]

http://javafx-jira.kenai.com/browse/RT-23951

I recently added to ScheduledService, and it supported all the boundary conditions (isIndefinite, isUnknown) of a Duration. Right now NEGATIVE_INFINITY is not handled at all in Duration. POSITIVE_INFINITY maps to isIndefinite and NaN maps to isUnknown.

It seems like NEGATIVE_INFINITY should also cause isIndefinite to return true. Some code (including mine) was assuming isIndefinite was positive, but that would not now necessarily be the case.

Thoughts?

Richard