Error:(8, 30) exception during macro expansion: java.lang.ClassCastException: scala.reflect.internal.Trees$Block cannot be cast to scala.reflect.api.Trees$CaseDefApi

[SavtechSolutions]

Error:(8, 30) exception during macro expansion: java.lang.ClassCastException: scala.reflect.internal.Trees$Block cannot be cast to scala.reflect.api.Trees$CaseDefApi at scala.reflect.api.Trees$Transformer$$anonfun$transformCaseDefs$1.apply(Trees.scala:2581) at scala.reflect.api.Trees$Transformer$$anonfun$transformCaseDefs$1.apply(Trees.scala:2581) at scala.collection.immutable.List.loop$1(List.scala:176) at scala.collection.immutable.List.mapConserve(List.scala:200) at scala.reflect.api.Trees$Transformer.transformCaseDefs(Trees.scala:2581) at scala.reflect.internal.Trees$class.itransform(Trees.scala:1382) at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16) at scala.reflect.internal.SymbolTable.itransform(SymbolTable.scala:16) at scala.reflect.api.Trees$Transformer.transform(Trees.scala:2555) at com.wix.accord.transform.PatternHelper$$anon$3.transform(PatternHelper.scala:107) at com.wix.accord.transform.PatternHelper$class.transformByPattern(PatternHelper.scala:108) at com.wix.accord.transform.ValidationTransform.transformByPattern(ValidationTransform.scala:24) at com.wix.accord.transform.ValidationTransform$$anonfun$processBooleanExpressions$1.applyOrElse(ValidationTransform.scala:208) at com.wix.accord.transform.ValidationTransform$$anonfun$processBooleanExpressions$1.applyOrElse(ValidationTransform.scala:206) at scala.runtime.AbstractPartialFunction.apply(AbstractPartialFunction.scala:36) at com.wix.accord.transform.ValidationTransform$$anonfun$rewriteValidationRules$1.applyOrElse(ValidationTransform.scala:200) at com.wix.accord.transform.ValidationTransform$$anonfun$rewriteValidationRules$1.applyOrElse(ValidationTransform.scala:200) at scala.PartialFunction$OrElse.apply(PartialFunction.scala:167) at com.wix.accord.transform.ValidationTransform$$anonfun$3$$anonfun$5.apply(ValidationTransform.scala:177) at com.wix.accord.transform.ValidationTransform$$anonfun$3$$anonfun$5.apply(ValidationTransform.scala:170) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234) at scala.collection.immutable.List.foreach(List.scala:392) at scala.collection.TraversableLike$class.map(TraversableLike.scala:234) at scala.collection.immutable.List.map(List.scala:296) at com.wix.accord.transform.ValidationTransform$$anonfun$3.applyOrElse(ValidationTransform.scala:170) at com.wix.accord.transform.ValidationTransform$$anonfun$3.applyOrElse(ValidationTransform.scala:161) at scala.PartialFunction$OrElse.apply(PartialFunction.scala:167) at com.wix.accord.transform.PatternHelper$$anon$2.traverse(PatternHelper.scala:85) at scala.reflect.api.Trees$Traverser.traverseTrees(Trees.scala:2484) at scala.reflect.internal.Trees$class.traverseComponents$1(Trees.scala:1234) at scala.reflect.internal.Trees$class.itraverse(Trees.scala:1330) at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16) at scala.reflect.internal.SymbolTable.itraverse(SymbolTable.scala:16) at scala.reflect.api.Trees$Traverser.traverse(Trees.scala:2475) at com.wix.accord.transform.PatternHelper$$anon$2.traverse(PatternHelper.scala:87) at com.wix.accord.transform.PatternHelper$class.collectFromPattern(PatternHelper.scala:89) at com.wix.accord.transform.ValidationTransform.collectFromPattern(ValidationTransform.scala:24) at com.wix.accord.transform.ValidationTransform.transformed(ValidationTransform.scala:220) at com.wix.accord.transform.ValidationTransform$.apply(ValidationTransform.scala:240) validator[CtptyLoanColl] { arg =>

The exception is for the following validator:

`import com.wix.accord.dsl._
import com.wix.accord.transform.ValidationTransform.TransformedValidator

object IHSValidator {
implicit val ctptyLoanCollValidator: TransformedValidator[CtptyLoanColl] =
validator[CtptyLoanColl] { arg =>
if (arg.LN_TypeOfSft == "SLEB") arg.LN_BaseProd match {
case "AGRI" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "NRGY" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "ENVR" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "FRGT" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "FRTL" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "INDP" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "METL" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "PAPR" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
case "POLY" =>
arg.LN_SubProd is in("GROS", "SOFT", "POTA", "OOLI", "DIRY", "FRST", "SEAF", "LSTK", "GRIN", "OTHR")
}
}
}
`

Only works when I comment all cases but one. As soon as I add another one, the compilation fails.

Relevant case class:

`import java.io.PrintWriter
import java.lang.{Boolean => JBoolean}
import java.sql.{Date, Timestamp}
import java.time.format.DateTimeFormatter

import scala.reflect.runtime.universe._

case class CtptyLoanColl(IM_SubmitterID: String = null,
IM_ParticipantID: String = null,
IM_RepCpCodeType: String = null,
CP_RepCp: String = null,
CP_NatureOfRepCp: String = null,
IM_NatureOfOtherCp: String = null,
CP_SecOfRepCp: String = null,
CP_AdditionalSecClass: String = null,
IM_BranchOfRepCpType: String = null,
CP_BranchOfRepCp: String = null,
IM_BranchOfOtherCpType: String = null,
CP_BranchOfOtherCp: String = null,
CP_CpSide: String = null,
CP_EntResponsibleForRep: String = null,
IM_OtherCpType: String = null,
CP_OtherCp: String = null,
CP_CountryOfOtherCp: String = null,
IM_CountryOfRpCp: String = null,
IM_SecOfOthrCp: String = null,
IM_BeneficiaryType: String = null,
CP_Beneficiary: String = null,
IM_TriPartyAgentType: String = null,
CP_TriPartyAgent: String = null,
IM_BrokerCodeType: String = null,
CP_Broker: String = null,
IM_ClearingMemberCodeType: String = null,
CP_ClearingMember: String = null,
IM_CsdParticipantCodeType: String = null,
CP_CsdParticipant: String = null,
IM_CsdIndirectParticipantCodeType: String = null,
CP_CsdIndirectParticipant: String = null,
IM_AgentLenderCodeType: String = null,
CP_AgentLender: String = null,
IM_TradeRef: String = null,
LN_Uti: String = null,
LN_RepTrackingNo: String = null,
LN_EventDate: Date = null,
IM_AsOfDateTime: Timestamp = null,
LN_TypeOfSft: String = null,
LN_Cleared: JBoolean = null,
LN_ClearingTime: Timestamp = null,
LN_Ccp: String = null,
LN_TradingVenue: String = null,
LN_MasterAgreementType: String = null,
LN_OtherMasterAgreementType: String = null,
LN_MasterAgreementVer: String = null,
IM_MasterAgreementID: String = null,
LN_ExecutionTime: Timestamp = null,
LN_ValueDateStartDate: Date = null,
LN_MaturityDateEndDate: Date = null,
LN_TerminationDate: Date = null,
LN_MinimumNoticePer: String = null,
LN_EarliestCallBackDate: Date = null,
LN_GeneralCollIndicator: String = null,
LN_DbvIndicator: JBoolean = null,
LN_MethodUsedToProvideColl: String = null,
LN_OpenTerm: JBoolean = null,
LN_TerminationOptionality: String = null,
LN_FixedRate: String = null,
LN_DayCountConvention: String = null,
LN_FlotRate: String = null,
LN_FlotRateRefPerTimePer: String = null,
LN_FlotRateRefPerMultiplier: String = null,
LN_FlotRatePaymentFreqTimePer: String = null,
LN_FlotRatePaymentFreqMultiplier: String = null,
LN_FlotRateResetFreqTimePer: String = null,
LN_FlotRateResetFreqMultiplier: String = null,
LN_Spread: String = null,
LN_AdjustedRate: String = null,
LN_RateDate: Date = null,
LN_PrinAmtOnValueDate: String = null,
LN_PrinAmtOnMaturityDate: String = null,
LN_PrinAmtCcy: String = null,
IM_MarketIdentifierTypes: String = null,
IM_MarketIdentifierCodes: String = null,
LN_TypeOfAsset: String = null,
LN_SecId: String = null,
IM_SecurityDescr: String = null,
LN_ClassOfASec: String = null,
LN_BaseProd: String = null,
LN_SubProd: String = null,
LN_FurtherSubProd: String = null,
LN_QuantityOrNominalAmt: String = null,
LN_UnitOfMeasure: String = null,
LN_CcyOfNominalAmt: String = null,
LN_SecOrCommodityPrice: String = null,
LN_SecOrCommodityPriceBasis: String = null,
LN_SecOrCommodityPricePct: String = null,
LN_SecOrCommodityPriceYield: String = null,
LN_PriceCcy: String = null,
LN_SecQuality: String = null,
LN_MaturityOfSec: Date = null,
LN_JurisdictionOfIssuer: String = null,
LN_LeiOfIssuer: String = null,
LN_SecType: String = null,
LN_LoanValue: String = null,
LN_MarketValue: String = null,
LN_FixedRebRate: String = null,
LN_FlotRebRate: String = null,
LN_FlotRebRateRefPerTimePer: String = null,
LN_FlotRebRateRefPerMultiplier: String = null,
LN_FlotRebRatePaymentFreqTimePer: String = null,
LN_FlotRebRatePaymentFreqMultiplier: String = null,
LN_FlotRebRateResetFreqTimePer: String = null,
LN_FlotRebRateResetFreqMultiplier: String = null,
LN_SpreadOfRebRate: String = null,
LN_LenFee: String = null,
LN_ExclusiveArrangements: JBoolean = null,
CO_UncollateralisedSlFlag: JBoolean = null,
CO_CollisationOfNetExposure: JBoolean = null,
CO_ValueDateOfColl: Date = null,
CO_TypeOfCollComponent: String = null,
IM_CollAssetIdentifierTypes: String = null,
IM_CollAssetIdentifierCodes: String = null,
IM_CollSecDescr: String = null,
CO_CashCollAmt: String = null,
CO_CashCollCcy: String = null,
CO_IdOfASecUsedAsColl: String = null,
CO_ClassOfASecUsedAsColl: String = null,
CO_BaseProd: String = null,
CO_SubProd: String = null,
CO_FurtherSubProd: String = null,
CO_CollQuantityOrNominalAmt: String = null,
CO_CollUnitOfMeasure: String = null,
CO_CcyOfCollNominalAmt: String = null,
CO_PriceCcy: String = null,
CO_PricePerUnit: String = null,
CO_PricePerUnitBasis: String = null,
CO_PricePerUnitPct: String = null,
CO_PricePerUnitYield: String = null,
CO_CollMarketValue: String = null,
CO_HaircutOrMargin: String = null,
CO_CollQuality: String = null,
CO_MaturityOfSec: Date = null,
CO_JurisdictionOfIssuer: String = null,
CO_LeiOfIssuer: String = null,
CO_CollType: String = null,
CO_AvailabilityForCollReuse: JBoolean = null,
CO_CollBasketId: String = null,
CO_PortfolioCode: String = null,
CO_ActionType: String = null,
CO_Level: String = null,
IM_DelegatedReporting: String = null,
IM_OthrCptyAdditionalSecClass: String = null,
IM_ShellTradeRef: String = null,
IM_ShellTradeQttyNom: String = null,
IM_CCPCodeType: String = null,
IM_EEARptCpty: JBoolean = null,
IM_MemberOfESCB: JBoolean = null,
IM_UserDefined1: String = null,
IM_UserDefined2: String = null,
IM_UserDefined3: String = null,
IM_UserDefined4: String = null,
IM_UserDefined5: String = null,
IM_UserDefined6: String = null,
IM_UserDefined7: String = null,
IM_UserDefined8: String = null,
IM_UserDefined9: String = null,
IM_UserDefined10: String = null) {
def toCSV: String = this.productIterator.map {
case null => ""
case timestamp: Timestamp => DateTimeFormatter.ISO_INSTANT.format(timestamp.toInstant)
case value => value.toString.replace(""", "\"")
}.mkString(",")
}

object CtptyLoanColl {
val header: String = typeOf[CtptyLoanColl].members.collect {
case m: MethodSymbol if m.isCaseAccessor => m
}.map(_.name.toString).toList.reverse.mkString(",")

def print(writer: PrintWriter,
records: Seq[String],
submitterID: String,
feedType: String = "Trade",
version: String = "3.00",
sequence: Int,
timestamp: String): Unit = {
writer.println(s"DataSupplier,$submitterID,FeedType,$feedType,SchemaVersion,$version,SeqNo,$sequence,DateProduced,$timestamp,RecordCount,${records.size}")
writer.println(CtptyLoanColl.header)
records.foreach(writer.println)
}
}
`

[SavtechSolutions]

Scala 2.11.12, Accord 0.7.3, JDK 8