MySQL Bugs: #89560: MySql.Data, MySqlConnection, Unhandled Exception.

Bug #89560	MySql.Data, MySqlConnection, Unhandled Exception.
Submitted:	7 Feb 2018 1:16	Modified:	9 Feb 2018 0:48
Reporter:	qining luo	Email Updates:
Status:	Closed	Impact on me:	None
Category:	Connector / NET	Severity:	S1 (Critical)
Version:	8.0.10-rc	OS:	Ubuntu (16.04LTS)
Assigned to:		CPU Architecture:	Any
Tags:	exception, initializer, MySql.Data, MySqlConnection, ReplicationManager

Description:
Unhandled Exception: System.TypeInitializationException: The type initializer for 'MySql.Data.MySqlClient.Replication.ReplicationManager' threw an exception. ---> System.TypeInitializationException: The type initializer for 'MySql.Data.MySqlClient.MySqlConfiguration' threw an exception. ---> System.ArgumentOutOfRangeException: Length cannot be less than zero.
Parameter name: length
   at System.String.Substring(Int32 startIndex, Int32 length)
   at System.Uri.CreateHostStringHelper(String str, UInt16 idx, UInt16 end, Flags& flags, String& scopeId)
   at System.Uri.CreateHostString()
   at System.Uri.EnsureHostString(Boolean allowDnsOptimization)
   at System.Uri.GetComponentsHelper(UriComponents uriComponents, UriFormat uriFormat)
   at System.Uri.ToString()
   at System.Configuration.ClientConfigPaths.GetTypeAndHashSuffix(String exePath)
   at System.Configuration.ClientConfigPaths..ctor(String exePath, Boolean includeUserConfig)
   at System.Configuration.ClientConfigPaths.GetPaths(String exePath, Boolean includeUserConfig)
   at System.Configuration.ClientConfigurationHost.get_ConfigPaths()
   at System.Configuration.ClientConfigurationHost.RequireCompleteInit(IInternalConfigRecord record)
   at System.Configuration.BaseConfigurationRecord.GetSectionRecursive(String configKey, Boolean getLkg, Boolean checkPermission, Boolean getRuntimeObject, Boolean requestIsHere, Object& result, Object& resultRuntimeObject)
   at System.Configuration.BaseConfigurationRecord.GetSection(String configKey)
   at System.Configuration.ConfigurationManager.GetSection(String sectionName)
   at MySql.Data.MySqlClient.MySqlConfiguration..cctor()
   --- End of inner exception stack trace ---
   at MySql.Data.MySqlClient.MySqlConfiguration.get_Settings()
   at MySql.Data.MySqlClient.Replication.ReplicationManager..cctor()
   --- End of inner exception stack trace ---
   at MySql.Data.MySqlClient.Replication.ReplicationManager.IsReplicationGroup(String groupName)
   at MySql.Data.MySqlClient.MySqlConnection.Open()
   at mysqltest1.Program.Main(String[] args) in /home/lqn/test/mysqltest1/Program.cs:line 24

How to repeat:
OS:Ubuntu 16.04 LTS
Dotnet SDK : 2.1.4 
MySql.Data : 8.0.10-rc
MySql      : 5.7.21-0ubuntu0.16.04.1

Test code:

using System;
using MySql.Data.MySqlClient;
namespace mysqltest1
{
    class Program
    {
        static void Main(string[] args)
        {
			MySqlConnectionStringBuilder b = new MySqlConnectionStringBuilder();
			b.Server = "localhost";
			b.Port = 3306;
			b.Database = "testdb";
			b.UserID = "root";
			b.Password = "123456";
			b.CharacterSet = "utf8";
			var connstr = b.ToString();
			MySqlConnection conn = new MySqlConnection(connstr);
			conn.Open();
			conn.Close();
        }
    }
}

dotnet run

Hello qining luo,

Thank you for the bug report and testcase.
I could not repeat the issue at our end using with Visual Studio 2017, Connector/NET 8.0.10-rc version.
If you can provide more information, feel free to add it to this bug and change the status back to 'Open'.

Thank you for your interest in MySQL.

Thanks,
Chiranjeevi.

Screenshot

Attachment: Bug_89560.PNG (image/png, text), 60.38 KiB.

Thank you for the replay.
I found that you test it on WINDOWS, yes it is ok on WINDOWS. But it not work on LINUX of UBUNTU. 
So please try again in LINUX os.

OS:Ubuntu 16.04 LTS
Dotnet SDK : 2.1.4 
MySql.Data : 8.0.10-rc
MySql      : 5.7.21-0ubuntu0.16.04.1

Exception on ubuntu

Attachment: Image 1.png (image/png, text), 166.54 KiB.

This bug onle happened on Linux os.