如何在ZugFerd/konik中设置简单交货日期？

• 使用从Access-im-Unternehmen获取的类示例可正常运行，通过Access VBA调用该类时，不传入真实日期能生成带XML发票的PDF/A文件。
• 传入格式为"dd.MM.yyyy"的日期时，无法将其赋值给_Lieferdatum，尝试多种方法均抛出以下错误：

  System.InvalidCastException: 无法将类型为"java.util.PropertyResourceBundle"的对象转换为类型"sun.util.resources.OpenListResourceBundle"。

• 仅_Lieferdatum = New ZfDateMonth(DateUtils.addMonths(New ZfDateDay, 1))这行代码能运行，但不符合实际需求；另外Visual Studio为英文设置，错误信息却显示为德语。

相关代码如下：

Imports System.Runtime.InteropServices
Imports com.neovisionaries.i18n
Imports io.konik
Imports io.konik.zugferd
Imports io.konik.zugferd.entity
Imports io.konik.zugferd.entity.trade
Imports io.konik.zugferd.entity.trade.item
Imports io.konik.zugferd.profile
Imports io.konik.zugferd.unece.codes
Imports io.konik.zugferd.unqualified
Imports java.io
Imports java.math
Imports org.apache.commons.lang3.time
Imports Country = com.neovisionaries.i18n.CountryCode
Imports Currency = com.neovisionaries.i18n.CurrencyCode


Public Class ZuGFeRD_NET

Private _Lieferdatum As ZfDate

Public Property Lieferdatum As String
        Get
            Return _Lieferdatum.toString
        End Get
        Set(value As String)
            Dim arr = value.Split(".")
            Dim str = arr(1) & "/" & arr(0) & "/" & arr(2)   ' 02/29/2024
            '_Lieferdatum = CDate(value)
            MsgBox("Lieferdatum" & value)  ' 29.02.2024
            _Lieferdatum = New ZfDateMonth(DateUtils.addMonths(New ZfDateDay, 1))
            MsgBox(_Lieferdatum.getFormatCode())  '610

            '_Lieferdatum = New ZfDateDay(DateUtils.parseDate(value))
            '_Lieferdatum = New ZfDateDay(DateUtils.parseDate(value, "yyyyMMdd"))
            '_Lieferdatum = New ZfDateDay(DateUtils.parseDate(value, "dd.MM.yyyy"))

            '_Lieferdatum = New ZfDateDay
            '_Lieferdatum.setDate(FormatNumber(arr(0)))
            '_Lieferdatum.setMonth(FormatNumber(arr(1)))
            '_Lieferdatum.setYear(FormatNumber(arr(2)))

            _Lieferdatum = New ZfDateDay(DateUtils.parseDate(str, "yyyyMMdd"))

        End Set
    End Property

内容的提问来源于stack exchange，提问作者AnetteVausH