我需要对我的包中的类进行一些更改，但我不想放弃初始类。我复制类并将其粘贴到同一个项目中并更改所有函数和类的名称，但是当我尝试使用maven中的新类编译包时，我得到堆栈溢出异常。这是错误消息：
[INFO]
[INFO] last tree to typer: TypeTree(class CustomerMiddleCombo)
[INFO] symbol: class CustomerMiddleCombo in package churnstory (fl ags: )
[INFO] symbol definition: class CustomerMiddleCombo extends Serializable
[INFO] tpe: com.cloudera.sa.bell.churnstory.CustomerMiddleCombo
[INFO] symbol owners: class CustomerMiddleCombo -> package churnstory
[INFO] context owners: method apply -> anonymous class $anonfun -> method generatedComboCountMore -> object ComboCounterJobM5 -> package churnstory
[INFO]
[INFO] == Enclosing template or block ==
[INFO]
[INFO] Apply( // val custId(): String in class UserAndSingleSeqCounts
[INFO] "r"."custId" // val custId(): String in class UserAndSingleSeqCounts
[INFO] Nil
[INFO] )
[INFO]
[INFO] == Expanded type of tree ==
[INFO]
[INFO] TypeRef(TypeSymbol(class CustomerMiddleCombo extends Serializable))
[INFO]
[ERROR] uncaught exception during compilation: java.lang.StackOverflowError
[ERROR] error: java.lang.StackOverflowError
我认为在Scala包中有类或对象或者具有相同名称的函数应该存在问题，但是我已经更改了新类中的所有名称。如果我摆脱这个新类（没有任何新行）我可以编译包没有任何问题！ 任何人都可以帮我解决这个问题吗？
这是抛出异常的代码部分：
comboCountsRDD.map(r => {
val sortedOrderedCounts2 = r.origOrderedCounts.sortedCounts
r.custId + "," + //CustID
dateFormat.format(currentDate) + "," + //generated_record_dt
dateFormat.format(new Date(r.timeOfRootEvent)) + "," + //z
r.origOrderedCounts.seq + "," + //orig_order_seq
r.origOrderedCounts.totalCount + "," + //orig_order_total_count
convertMillisecondsToDays(r.origOrderedCounts.minTimeFromRootEvent) + "," + //orig_order_min_time_from_root
convertMillisecondsToDays(r.origOrderedCounts.totalTimeFromRootEvent / r.origOrderedCounts.totalCount.toDouble) + "," + //orig_order_avg_time_from_root
r.origOrderedCounts.countOfTimeFromRootEventWithInAWeek + "," + //orig_order_with_in_week_of_root
r.origOrderedCounts.countOfTimeFromRootEventWithInAMonth + "," + //orig_order_with_in_month_of_root
r.origOrderedCounts.countOfTimeFromRootEventWithInAQrt + "," + //orig_order_with_in_qrt_of_root
convertMillisecondsToDays(r.origOrderedCounts.minTimeOverLifeOfSeq) + "," + //orig_order_min_seq_time
convertMillisecondsToDays(r.origOrderedCounts.totalTimeOverLifeOfSeq / r.origOrderedCounts.totalCount.toDouble) + "," + //orig_order_avg_seq_time
r.origOrderedCounts.countOfTimeOverLifeOfSeqWithInAWeek + "," + //orig_order_with_in_week_over_seq
r.origOrderedCounts.countOfTimeOverLifeOfSeqWithInAMonth + "," + //orig_order_with_in_month_over_seq
r.origOrderedCounts.countOfTimeOverLifeOfSeqWithInAQrt + "," + //orig_order_with_in_qrt_over_seq
convertMillisecondsToDays(r.origOrderedCounts.minTimeFromNow) + "," + //orig_order_min_time_from_now
convertMillisecondsToDays(r.origOrderedCounts.totalTimeFromNow / r.origOrderedCounts.totalCount.toDouble) + "," + //orig_order_avg_time_from_now
r.origOrderedCounts.countOfTimeFromNowWithInAWeek + "," + //orig_order_with_in_week_of_now
r.origOrderedCounts.countOfTimeFromNowWithInAMonth + "," + //orig_order_with_in_month_of_now
r.origOrderedCounts.countOfTimeFromNowWithInAQrt+","+
sortedOrderedCounts2.seq + "," + //sort_order_seq
sortedOrderedCounts2.totalCount + "," + //sorted_order_total_count
convertMillisecondsToDays(sortedOrderedCounts2.minTimeFromRootEvent) + "," + //sorted_order_min_time_from_root
//convertMillisecondsToDays(sortedOrderedCounts2.totalTimeFromRootEvent / sortedOrderedCounts2.totalCount.toDouble) + "," + //sorted_order_avg_time_from_root-->exception
sortedOrderedCounts2.countOfTimeFromRootEventWithInAWeek + "," + //sorted_order_with_in_week_of_root
sortedOrderedCounts2.countOfTimeFromRootEventWithInAMonth + "," + //sorted_order_with_in_month_of_root
sortedOrderedCounts2.countOfTimeFromRootEventWithInAQrt + "," + //sorted_order_with_in_qrt_of_root
//convertMillisecondsToDays(sortedOrderedCounts2.minTimeOverLifeOfSeq) + "," + //sorted_order_min_seq_time-->exception
//convertMillisecondsToDays(sortedOrderedCounts2.totalTimeOverLifeOfSeq / sortedOrderedCounts2.totalCount.toDouble) + "," + //sorted_order_avg_seq_time-->exception
sortedOrderedCounts2.countOfTimeOverLifeOfSeqWithInAWeek + "," + //sorted_order_with_in_week_over_seq
sortedOrderedCounts2.countOfTimeOverLifeOfSeqWithInAMonth + "," + //sorted_order_with_in_month_over_seq
sortedOrderedCounts2.countOfTimeOverLifeOfSeqWithInAQrt + "," + //sorted_order_with_in_qrt_over_seq
//convertMillisecondsToDays(sortedOrderedCounts2.minTimeFromNow) + "," //sorted_order_min_time_from_now-->exception
//convertMillisecondsToDays(sortedOrderedCounts2.totalTimeFromNow / sortedOrderedCounts2.totalCount.toDouble) + ","// + //sorted_order_avg_time_from_now -->exception
//sortedOrderedCounts2.countOfTimeFromNowWithInAWeek + "," //+ //sorted_order_with_in_week_of_now-->exception
//sortedOrderedCounts2.countOfTimeFromNowWithInAMonth + ","// + //sorted_order_with_in_month_of_now-->exception
sortedOrderedCounts2.countOfTimeFromNowWithInAQrt //orig_order_with_in_qrt_of_now*/
}).saveAsTextFile(outputPath)
我逐行测试代码，我注释掉的行和最后的异常导致我出现问题。 comboCountsRDD类型是UserAndSingleSeqCounts：
class UserAndSingleSeqCounts(val custId: String,val timeOfRootEvent: Long, val origOrderedCounts: TotalCountsAndSubCounts) extends Serializable {}
和origOrderedCounts有一个嵌套结构：
class TotalCountsAndSubCounts(var seq: String,
var totalCount: Long,
var minTimeFromRootEvent: Long,
var totalTimeFromRootEvent: Long,
var countOfTimeFromRootEventWithInAWeek: Int,
var countOfTimeFromRootEventWithInAMonth: Int,
var countOfTimeFromRootEventWithInAQrt: Int,
var minTimeOverLifeOfSeq: Long,
var totalTimeOverLifeOfSeq: Long,
var countOfTimeOverLifeOfSeqWithInAWeek: Int,
var countOfTimeOverLifeOfSeqWithInAMonth: Int,
var countOfTimeOverLifeOfSeqWithInAQrt: Int,
var minTimeFromNow: Long,
var totalTimeFromNow: Long,
var countOfTimeFromNowWithInAWeek: Int,
var countOfTimeFromNowWithInAMonth: Int,
var countOfTimeFromNowWithInAQrt: Int,
var countOfDifferentOrders: Int,
var sortedCounts: TotalCountsAndSubCounts) extends Serializable
我很困惑：为什么从sortedOrderedCounts2请求一些而不是所有属性会在编译时导致异常！