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An unhandled exception of type 'System.NullReferenceException' - FbCommand [DNET704] #655

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firebird-automations opened this issue Sep 29, 2016 · 3 comments

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@firebird-automations
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Submitted by: Marcos R. Weimer (marcosweimer)

Is related to DNET698

Exception: An unhandled exception of type 'System.NullReferenceException' occurred in FirebirdSql.Data.FirebirdClient.dll

in RollbackImplicitTransaction (line 764):

int transactionCount = Connection.InnerConnection.Database.TransactionCount;

Connection = has connection value
InnerConnection = null

Sporadic error, did not identify the cause of the problem.

Trace:

<TraceRecord xmlns="http://schemas.microsoft.com/2004/10/E2ETraceEvent/TraceRecord" Severity="Critical"><TraceIdentifier>http://msdn.microsoft.com/TraceCodes/System/ActivityTracing/2004/07/Reliability/Exception/Unhandled</TraceIdentifier><Description>Exceção não tratada</Description><AppDomain>UltraNFe.vshost.exe</AppDomain><Exception><ExceptionType>System.NullReferenceException, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</ExceptionType><Message>Referência de objeto não definida para uma instância de um objeto.</Message><StackTrace> em FirebirdSql.Data.FirebirdClient.FbCommand.RollbackImplicitTransaction() na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 768
em FirebirdSql.Data.FirebirdClient.FbCommand.Release() na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 806
em FirebirdSql.Data.FirebirdClient.FbCommand.Dispose(Boolean disposing) na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 372
em System.ComponentModel.Component.Finalize()</StackTrace><ExceptionString>System.NullReferenceException: Referência de objeto não definida para uma instância de um objeto.
em FirebirdSql.Data.FirebirdClient.FbCommand.RollbackImplicitTransaction() na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 768
em FirebirdSql.Data.FirebirdClient.FbCommand.Release() na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 806
em FirebirdSql.Data.FirebirdClient.FbCommand.Dispose(Boolean disposing) na C:\Users\Jiri\Documents\devel\NETProvider\working\Provider\src\FirebirdSql.Data.FirebirdClient\FirebirdClient\FbCommand.cs:linha 372
em System.ComponentModel.Component.Finalize()</ExceptionString></Exception></TraceRecord>

sorry for my English

@firebird-automations
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Modified by: @cincuranet

Link: This issue is related to DNET698 [ DNET698 ]

@firebird-automations
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Modified by: @cincuranet

status: Open [ 1 ] => Resolved [ 5 ]

resolution: Fixed [ 1 ]

Fix Version: vNext - Finalizers [ 10807 ]

@firebird-automations
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Modified by: @cincuranet

Fix Version: vNext [ 10804 ]

Fix Version: vNext - Finalizers [ 10807 ] =>

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