As we get closer to
GlassFish v3 FCS,
the development is moving into cleanup stage - and with high volume, see the
DEV alias.
Part of the cleanup is the usual bug fixing, part is an
Increased Testing via FishCAT
and part is general code quality cleanup via tools like
FindBugs.

FindBugs is particularly useful because it helps to find new bugs and prevents future bugs.
FindBugs is integrated into the development cycle through a Hudson job; see
High Priority FindBugs.
The FindBugs cleanup phase started recently
(see
FindBugs thread),
but the
Trend Chart
shows the progress.