Not descriptive error in GetOrganizationService() method

[shytikov]

If password was not saved, calling ConnectionDetail.GetOrganizationService() will fire ArgumentNullException.

Error itself is fair, but error message is misleading:

Value cannot be null.
Parameter name: s

I think code should throw more descriptive exception, that could be caught and properly solved by calling code (for example by showing input credentials dialog).

Here is call stack:

McTools.Xrm.Connection.dll!McTools.Xrm.Connection.CryptoManager.Decrypt(string cipherText, string passPhrase, string saltValue, string hashAlgorithm, int passwordIterations, string initVector, int keySize) Line 180 + 0xc bytes C#
McTools.Xrm.Connection.dll!McTools.Xrm.Connection.ConnectionDetail.GetOrganizationCrmConnectionString() Line 245 + 0x59 bytes C#
McTools.Xrm.Connection.dll!McTools.Xrm.Connection.ConnectionDetail.GetOrganizationService() Line 307 + 0x9 bytes C#