@NamedQuery(name = "Depv.findByParameters", query = "SELECT d FROM Depv d "
+ " where (d.depvPk.defoFeinere = :defoFeinere AND d.depvPk.depoFeinere = :depoFeinere)"
+" OPTIMIZE FOR 1 ROW "),

this is the query its showing exception :
The expression is not a valid conditional expression

but the query is right