Please see the standalone example below using your JSON data, hopefully that will explain things.
I think the issue is that what you are receiving from the JSON Slurper result is not what you expected. Note how I have used the getClass() method to tell what I have at the various stages.
May I suggest that you read the JsonSlurper documentation and how and when it returns Maps and/or Lists.
import groovy.json.JsonSlurper
def jsonresponse = '''\
{
"GetBenefitDetailsResult" : {
"BenefitDetails" : [
{
"CompanyCode" : "01",
"PolicyNumber" : "TEST",
"BenefitSeq" : 99,
"BenefitType" : "UV",
"ProcessedToDate" : 99999999,
"StatusCode" : "",
"StatusReason" : "",
"StatusDate" : 0,
"PlanCode" : "",
"IssueDate" : 0,
"ParentBenefitSeq" : 1,
"PayUpDate" : 0,
"MatureExpireDate" : 0,
"ProcessingCycle" : "",
"InfRiderSeq" : 0,
"LastChgDate" : 0,
"LastChgTime" : 538976288,
"DateOfBirth" : 0,
"IssueAge" : 0,
"UnderwritingClass" : "",
"SexCode" : "",
"InsuredDeathInd" : "",
"SecondInsuredDob" : 0,
"SecInsIssAge" : 0,
"SecInsUwcls" : "",
"SecInsSexCode" : "",
"SecInsDeathInd" : "",
"ValuePerUnit" : 0.00,
"NumberOfUnits" : 0.00000,
"AnnPremPerUnit" : 0.00000,
"ModePremium" : 0.00,
"CommMdlFctrsFl" : "",
"BenefitFee" : 0.00,
"NonCommHelthFlg" : "",
"CommBasedOnDate" : "",
"PremBasedOnDate" : "",
"UnitsNarFlag" : "",
"CategoryCode" : "",
"RenewalType" : "",
"AaModelFlag" : "",
"EtiMx" : 0E-7,
"PolLineOfBusnss" : "",
"ProductType" : "",
"AgentSplitCtl" : 0,
"CommissionClass" : "",
"IssueState" : "",
"ResidentState" : "",
"AuxAge" : 0,
"BasicBillDate" : 0,
"EffPremDate" : 0,
"MecDate" : 0,
"UnderwriterCode" : "",
"UnderwriterType" : "",
"ReinCode" : 0,
"PremTaxBasisFl" : "",
"JointFlag" : "",
"AllctdTargetPrem" : 0.00,
"AllctdMinPrem" : 0.00,
"TypeCode" : "",
"ParType" : "",
"NonForfeiture" : "",
"Dividend" : "",
"OtherInfo" : "",
"AccumDividends" : 0.0,
"PremiumsPaid" : 0.0,
"DividendsCredited" : 0.0,
"TaxBasis" : 0.0,
"ExcessDividend" : "",
"UlRiderFvSeq" : 0,
"CapOytOption" : "",
"MaximizeOytFlag" : "",
"OriginalUnits" : 0.0,
"OrLPOverride" : "",
"BillLoanNetDiv" : "",
"Opt8TarFlag" : "",
"EtiRpuEndowment" : 0.0,
"EtiRpuPattern" : "",
"PpPtOytDivs" : 0.0,
"FundValue" : {
"FvFundValueCode" : "",
"FvBasis1" : 0.0,
"FvBasis2" : 0.0,
"FvIncome1" : 0.00,
"FvIncome2" : 0.00,
"FvBalance1" : 0.00,
"FvBalance2" : 0.00,
"FvTotLoanBasis" : 0.00,
"FvTotalLoanInc" : 0.00,
"FvTotalLoanBal" : 0.00,
"FvGuarRate" : 0.00,
"FvGuarDeposits" : 0.00,
"FvDepLoads" : 0.00,
"FvGrWithdrawals" : 0.00,
"FvWithdrawalLoad" : 0.00,
"FvCoi" : 0.00,
"FvBaseDed" : 0.00,
"FvProcessLoads" : 0.00,
"FvProductType" : "",
"FvType" : "",
"FvProcessRule" : "",
"FvDepAlloc" : "",
"FvWtdAlloc" : "",
"FvDedAlloc" : "",
"FvCoiAlloc" : "",
"FvLonAlloc" : "",
"FvPldAlloc" : "",
"FvLastValDate" : 0,
"FvLandmarkDate" : 0,
"FvDepAllocFlag" : "",
"FvSpecialFund" : "",
"FvOrderNum" : "0",
"FvCommClass" : "",
"FvWaiverFee" : "",
"FvWaiverCalc" : "",
"FvFillerLock" : ""
},
"UnitValue" : {
"UvGuarCoiRate" : 1.28665,
"UvCurrCoiRate" : 0.82090,
"UvCurrentNar" : 90.26115,
"UvTotalBasisIss" : 0.00,
"UvTaxBasisIssue" : 0.00,
"UvEi1" : 0.00,
"UvEi2" : 0.00,
"UvEi3" : 0.00,
"UvEi4" : 0.00,
"UvEi5" : 0.00,
"UvEi6" : 0.00,
"UvEi7" : 0.00,
"UvEi8" : 0.00,
"UvEi9" : 0.00,
"UvEi10" : 0.00,
"UvEi11" : 0.00,
"UvEi12" : 0.00,
"UvAnnEi1" : 0.00,
"UvAnnEi2" : 0.00,
"UvAnnEi3" : 0.00,
"UvAnnEi4" : 0.00,
"UvAnnEi5" : 0.00,
"UvAnnEi6" : 0.00,
"UvAnnEi7" : 0.00,
"UvAnnEi8" : 0.00,
"UvAnnEi9" : 0.00,
"UvAnnEi10" : 0.00,
"UvAnnEi11" : 0.00,
"UvAnnEi12" : 0.00,
"UvTotSpecialAmt" : 100000.00,
"Uv10201988SpAmt" : 0.00,
"Uv12311986FnVal" : 0.00,
"Uv12311988FnVal" : 0.00,
"UvWaiverFee" : "",
"UvWaiverCalc" : "",
"UvFillerLock" : ""
},
"OtherRider" : {
"OrRiderType" : "",
"OrMthlyDed" : 0.0,
"OrPuaFace" : 0.0
},
"Base" : {
"BaThirdPrtyFlag" : "",
"BaOrTotInfFlag" : "",
"BaTamraPrem" : 0.0,
"BaTamraFlag" : "",
"BaOrDivIntegra" : "",
"BaOrVanishFlag" : "",
"BaOrPuaSeq" : 0.0,
"BaOrSpecialFee" : "",
"BaOrWaiverFee" : "",
"BaOrWaiverCalc" : "",
"BaOrBenefitLock" : 0.0,
"BaOrTamraTrmnt" : "",
"BaOrCovLvlDiv" : ""
},
"ShadowBenefit" : {
"SuTypeCode" : "",
"SuSubtypeCd" : "",
"SuUnitsCtrl" : "",
"SuDeduction" : 0.0,
"SuPremiumsPaid" : 0.0,
"SuDivCredited" : 0.0,
"SuTaxBasis" : 0.0,
"SuCompSubType" : "",
"SuTotInfFlag" : "",
"SuLPOverride" : "",
"SuTamraFlag" : "",
"SuRowSource" : "",
"SuBundledBenSeq" : 0,
"SuJointSelection" : "",
"SuSpecialFee" : "",
"SuWaiverFee" : "",
"SuWaiverCalc" : "",
"SuBenefitLock" : 0,
"SuTamraTrmnt" : ""
},
"SurrenderLoad" : {
"SlTableCode" : "",
"SlRateUpAge" : 0,
"SlPercent" : 0.0,
"SlFlatAmount" : 0.0,
"SlPctCeaseDate" : 0,
"SlFlatCeaseDate" : 0,
"Sl2NdTableCode" : "",
"Sl2NdRateAgeUp" : 0,
"Sl2NdPercent" : 0.0,
"Sl2NdFlatAmount" : 0.0,
"Sl2NdPctCsDate" : 0,
"Sl2NdFltCsDate" : 0,
"SlPctMthlyDed" : 0.0,
"SlFlatMthlyDed" : 0.0,
"SlPremiumsPaid" : 0.0,
"SlDivCredited" : 0.0,
"SlTaxBasis" : 0.0,
"SlLPOverride" : "",
"SlWaiverCalc" : "",
"SlBenefitLock" : 0
},
"PaidUp" : {
"PuTypeCode" : "",
"PuIntPdToDate" : 0,
"PuAccruInt" : 0.0,
"PuAccruFaceAmt" : 0.0,
"PuPremiumsPaid" : 0.0,
"PuDivCredited" : 0.0,
"PuTaxBasis" : 0.0,
"PuSpecialFee" : "",
"PuWaiverFee" : "",
"PuWaiverCalc" : "",
"PuBenefitLock" : 0
},
"AnnuityRider" : {
"ArBillingMode" : "",
"ArBillingForm" : "",
"ArBilledToDate" : 0,
"ArPaidToDate" : 0,
"ArActBillDate" : 0,
"ArBillableAmount" : 0.00,
"ArSurrenderLoad" : 0.0,
"ArCurrAccumCash" : 0.0,
"ArLastValDate" : 0,
"ArOther" : "",
"ArVarCovrFlag" : "",
"ArWithProcDate" : 0,
"ArFvCreatnFlag" : "",
"ArPremDepRque" : "",
"ArIndexedCovrFl" : "",
"ArWaiverFee" : "",
"ArWaiverCalc" : "",
"ArBenefitLock" : 0
},
"BaseFund" : {
"BfNonForfeiture" : "",
"BfSpecifiedAmt" : 0.0,
"BfCurrentDb" : 0.0,
"BfDbOption" : "",
"BfCurrSurrLoad" : 0.0,
"BfMinimumPremium" : 0.0,
"BfTarget" : 0.0,
"BfTamraAmount" : 0.0,
"BfGuidelinLvlPr" : 0.0,
"BfGuidelinSngPr" : 0.0,
"BfLastValDate" : 0,
"BfDateNegative" : 0,
"BfThirdPrtyFlag" : "",
"BfTotInfFlag" : "",
"BfVarCovrFlag" : "",
"BfWithProcDate" : 0,
"BfFvCreatnFlag" : "",
"BfPremDepRque" : "",
"BfRothIraCbFlg" : "",
"BfBaseTargetExp" : 0.0,
"BfWaiverFee" : "",
"BfWaiverCalc" : "",
"BfBenefitLock" : 0,
"BfIndexedCovrFl" : "",
"BfTreasryCvrFlg" : "",
"BfHybridCovrFlg" : ""
},
"SpecifiedAmountIncrease" : {
"SpOriginFlag" : "",
"SpSpecifiedAmt" : 0.0,
"SpTotInfFlag" : ""
}
}
],
"GUID" : "TEST51564564DFSSFG",
"ReturnCode" : 0,
"Message" : null
}
}'''
def jsluper=new JsonSlurper().parseText(jsonresponse)
def jsonvalues=[]
log.info(jsluper.GetBenefitDetailsResult.BenefitDetails.getClass())
// BenefitDetails is a list, albeit with only one item.
jsluper.GetBenefitDetailsResult.BenefitDetails.each{ benefitDetail ->
// Each List item is a Map
log.info(benefitDetail.getClass())
log.info(benefitDetail.toString())
// You then need to loop through each map entry
benefitDetail.each(){ mapEntry ->
log.info(mapEntry.getClass())
log.info(mapEntry.getKey())
log.info(mapEntry.getValue())
// Note: The map entry value may not be a simple string value.
log.info(mapEntry.getValue().getClass())
jsonvalues.add(mapEntry.getKey())
jsonvalues.add(mapEntry.getValue())
}
}
log.info(jsonvalues)
