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2399082 - crash using ArrayList in AseConnection - SDK for SAP ASE

Symptom application crashes one of these stack traces:

  • System.ArgumentOutOfRangeException:Count must be positive and count must refer to a location within the string/array/collection.
    Parameter name:count
    atSystem.Array.IndexOf(Array array, Object value, Int32 startIndex, Int32count)
        at System.Collections.ArrayList.IndexOf(Object value)
        at System.Collections.ArrayList.Remove(Object obj)
        at Sybase.Data.AseClient1.AseConnection.UnregisterCommand(AseCommand command)
        at Sybase.Data.AseClient.AseConnection.UnregisterCommand(AseCommand command)
        at Sybase.Data.AseClient.AseDataReader.DropCommand(Boolean isNeedUnregCmd)
        at Sybase.Data.AseClient.AseDataReader.Close()
        at System.Data.Common.DbDataReader.Dispose(Boolean disposing)
        at System.Data.Common.DbDataReader.Dispose()
  • System.IndexOutOfRangeException: Index was outside the bounds of the array.
      at System.Collections.ArrayList.Add(Object value)
        at Sybase.Data.AseClient1.AseConnection.RegisterCommand(AseCommand command)
        at Sybase.Data.AseClient.AseConnection.RegisterCommand(AseCommand command)
        at Sybase.Data.AseClient1.AseCommand._ExecuteReader(CommandBehavior commandBehavior)
        at Sybase.Data.AseClient1.AseCommand.ExecuteReader(CommandBehavior commandBehavior)
        at Sybase.Data.AseClient.AseCommand.ExecuteDbDataReader(CommandBehavior behavior)
        at System.Data.Common.DbCommand.ExecuteReader()



  • SAP Sybase Software Developers KIT (SDK) 15.0
  • SAP Sybase Software Developers KIT (SDK) 15.5
  • SAP Sybase Software Developers KIT (SDK) 15.7 SP138
  • SAP Software Developers Kit (SDK) for Adaptive Server Enterprise (ASE) 16.0 SP02 PL04
  • Adaptive Server Enterprise ADO.NET Data Provider
    • 1.15 Provider ( Sybase.AdoNet.AseClient.dll )
    • 2.0 Provider ( Sybase.AdoNet2.AseClient.dll )
    • 3.5 Provider ( Sybase.AdoNet35.AseClient.dll )
    • 4.0 Provider ( Sybase.AdoNet4.AseClient.dll )
    • 4.5 Provider ( Sybase.AdoNet45.AseClient.dll )
  • Microsoft Windows x86 (32-bit)
  • Microsoft Windows x64 (64-bit)
    • Win 7/8/10, 2008/2008 R2, 2012/2012 R2


SAP Adaptive Server Enterprise SDK 16.0 ; Sybase SDK 12.5 ; Sybase SDK 15.0 ; Sybase SDK 15.5 ; Sybase SDK 15.7 ; Sybase Software Developer Kit 15.7


"SAP ASE", Developer's,, .net, crash, dump, stacktrace, stack, trace, arraylist, thread, threaded, multithread, connection, high load, CR#802647, CR802647, 802647 , KBA , BC-SYB-SDK , SDK , Problem

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