On [Edit Connection Pool] page, I see some erattic behavior in validating input
[How to reproduce]
1. Open Administration console gui
2. From side menu click JDBC -> Connection Pools
3. Click one of Pools listed in the table(maybe DerbyPool or so)
4.On [Edit Connection Pool]-[Pool Settings] area, delete default number from
textbox to make that field be vacant, then click [Save] .
5. Error message will appear at the top of the page saying:
An error has occurred
value: does not represent an Integer
If you place non-numeric value like "a", " ", "+" or so, validation will be
done at client side. Maybe null value (vacant string) would be better included
among them to make it be consistent.