gnu.xquery.util
Classes 
ArithOp
Average
BooleanValue
CastableAs
CastAs
Compare
CompileMisc
Debug
DistinctValues
IntegerRange
ItemAt
MinMax
NamedCollator
NodeUtils
NumberValue
OrderedMap
OrderedTuples
QNameUtils
Reduce
RelativeStep
RelativeStepFilter
SequenceUtils
StringUtils
SubList
TimeUtils
ValuesEvery
ValuesFilter
Exceptions 
XQException