问题 在读取csv文件时无法移动到下一行

我有一个类帮助我读取一个csv文件，另一个类创建csv的每一行的对象，所以我可以分别为每一行运行一些操作。用它来实现自动化。

由于某种原因我的程序在一行后停止了...之前有效，所以我不知道出了什么问题。

这是我的csv阅读器类：

import java.io.File
import com.github.tototoshi.csv.CSVReader
import jxl.{Cell, Workbook}

import scala.collection.mutable

trait DataSource {

  def read (fileName: String): Seq[Map[String, String]]
}

object CsvDataSource extends DataSource {
  import com.github.tototoshi.csv.CSVFormat
  import com.github.tototoshi.csv.Quoting
  import com.github.tototoshi.csv.QUOTE_MINIMAL

  implicit object MyFormat extends CSVFormat {
    val delimiter: Char = '\t'
    val quoteChar: Char = '"'
    val escapeChar: Char = '"'
    val lineTerminator: String = "\r\n"
    val quoting: Quoting = QUOTE_MINIMAL
    val treatEmptyLineAsNil: Boolean = false
  }

  override def read(file: String): Seq[Map[String, String]] = {
    val reader = CSVReader.open(file, "UTF-16")(MyFormat)
    reader.iteratorWithHeaders.toSeq
  }
}

这是PurchaseInfo类，它正在创建csv的每一行的对象：

case class PurchaseInfo(
                         something1: String,
                         something2: String,
                         something3: String,
                         something4: String) {
}


object PurchaseInfo {

    private def changeDateFormat(dateInString: String): String = {
    //System.out.println(dateInString)
    val formatter: SimpleDateFormat = new SimpleDateFormat("MMM dd, yyyy")
    val formatter2: SimpleDateFormat = new SimpleDateFormat("dd/MM/yyyy")
    val date: Date = formatter.parse(dateInString)
    return formatter2.format(date).toString
  }

    def fromDataSource (ds: DataSource)(fileName: String): Seq[PurchaseInfo] = {

      ds.read(fileName).map { c =>
        PurchaseInfo(
          something1 = c("Supplier Address Street Number"),
          something2 = c("Supplier Address Route"),
          something3 = c("Supplier Address Locality"),
          something4 = c("Supplier Address Postal Code")
        )
      }
    }
}

现在，在我执行所有操作的类中，有一个名为insertData的方法，它获取一系列purchaseInfos，并在此seq中调用每个purchaseInfo的另一个方法....

def insertData (purchaseInfos: Seq[PurchaseInfo]) = {

    //logging in and then getting directed to the right path (where we start the invoices automation)
    login()

    val res = purchaseInfos.map { case purchaseInfo =>
      println(purchaseInfo.invoiceNumber)
      (purchaseInfo, Try(addInvoiceFlow(purchaseInfo)))
    }
    res
  }

问题是insertData调用addInvoiceFlow只有一个与第一个purchaseInfo并停止...为什么？我检查了34行，所以没有csv文件的概率..

这是用scala编写的，但java也可以帮助:)