question: @ Override public BigDecimal calculateTotalPendingAdvance ( final BigDecimal totalAdvancePaid , final Date billDate , final WorkOrderEstimate workOrderEstimate , final Long billId ) { final CChartOfAccounts advanceCOA = contractorAdvanceService . getContractorAdvanceAccountcodeForWOE ( workOrderEstimate . getId ( ) ) ; BigDecimal totalPendingBalance = BigDecimal . ZERO ; BigDecimal totalAdvanceAdjusted = BigDecimal . ZERO ; if ( advanceCOA != null && totalAdvancePaid != null && totalAdvancePaid . compareTo ( BigDecimal . ZERO ) > 0 ) { totalAdvanceAdjusted = getTotalAdvanceAdjustedForWOE ( billDate , workOrderEstimate . getId ( ) , advanceCOA . getId ( ) , billId ) ; if ( totalAdvanceAdjusted != null && totalAdvanceAdjusted . compareTo ( BigDecimal . ZERO ) > 0 && totalAdvanceAdjusted . compareTo ( BigDecimal . ZERO ) > 0 ) totalPendingBalance = totalAdvanceAdjusted . subtract ( totalAdvanceAdjusted ) ; else totalPendingBalance = totalAdvancePaid ; } return totalPendingBalance ; }
target:  The method return BigDecimal