java.sql.Date not working on WPS 6.2?

I had this program reading database table column as java.sql.Data type. Well it failed to read this when running from the WPS AIX server. Funny thing is it was fine when i was testing this program from my local WPS server runtime. In application log the column data type is recognized as java.sql.Timestamp. So i have to change to program to read Timestamp instead of Date.