Unhandled exception at Microsoft.ActiveDirectory.Management.Commands.SafeSessionCache

Jose Martinez Poyato (jmartin4) 20 Reputation points
2024-06-19T10:56:17.3966667+00:00

Hi all,

Our App crashes randomly every now and then. Right before it crashes the following appears logged:

====================================================================

Application: xxxxxx.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
at Microsoft.ActiveDirectory.Management.Commands.SafeSessionCache.Dispose(Boolean)
at Microsoft.ActiveDirectory.Management.Commands.SafeSessionCache.Finalize() ====================================================================

Note that a Powershell script runs by our app which loads Import-Module ActiveDirectory to run AD commands.

Active Directory
Active Directory
A set of directory-based technologies included in Windows Server.
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PowerShell
PowerShell
A family of Microsoft task automation and configuration management frameworks consisting of a command-line shell and associated scripting language.
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Accepted answer
  1. Claudia Dos Santos Haz (CONCENTRIX CORPORATION) 930 Reputation points Microsoft Vendor
    2024-06-25T09:49:07.9+00:00

    Hi @Jose Martinez Poyato (jmartin4)

    Thank you for reaching out to Microsoft Q&A forum!

    The System.NullReferenceException occurs when you try to access a member on a type whose value is null. Here are some common scenarios that trigger this exception:

    Uninitialized Object Variables: If an object variable is uninitialized (i.e., it points to nothing), accessing its members will cause a NullReferenceException. Ensure that you initialize your object variables properly.

    Intentional Use of null: Sometimes, developers intentionally use null to indicate the absence of a meaningful value. For example, nullable data types allow you to assign null to variables when there’s no value stored in them.

    Array Dimensioning: If you forget to dimension an array before initializing it, you’ll encounter a NullReferenceException.

    To fix this error:

    • Check if you’ve properly initialized any object references.
    • Verify that arrays are correctly dimensioned before use.
    • If you’re intentionally using null, handle it appropriately in your code.

    Remember, a NullReferenceException always indicates that you’re trying to use a reference that isn’t initialized.The System.NullReferenceException occurs when you try to access a member on a type whose value is null. Here are some common scenarios that trigger this exception:

    Uninitialized Object Variables: If an object variable is uninitialized (i.e., it points to nothing), accessing its members will cause a NullReferenceException. Ensure that you initialize your object variables properly.

    Intentional Use of null: Sometimes, developers intentionally use null to indicate the absence of a meaningful value. For example, nullable data types allow you to assign null to variables when there’s no value stored in them.

    Array Dimensioning: If you forget to dimension an array before initializing it, you’ll encounter a NullReferenceException.

    To fix this error:

    • Check if you’ve properly initialized any object references.
    • Verify that arrays are correctly dimensioned before use.
    • If you’re intentionally using null, handle it appropriately in your code.

    Remember, a NullReferenceException always indicates that you’re trying to use a reference that isn’t initialized.

    Best regards,

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