Bug Report T577953
Visible to All Users

Static Code Analysis - The "Possible System.NullReferenceException" diagnostic incorrectly highlights array items

created 7 years ago

Following example shows CRR0027 on line 8 ("result = splitted(0).ToUpper") although NullReferenceException is never thrown:

Visual Basic
Public Module Module1 Function Foo(text As String) As String Dim result As String = text If text IsNot Nothing Then Dim splitted As String() = text.Split({" "c}, StringComparison.Ordinal) result = splitted(0).ToUpper End If Return result End Function 'Examples: ' Foo("Hello World!") => "HELLO" ' Foo("Morning!") => "MORNING!" ' Foo("") => "" ' Foo(Nothing) => Nothing End Module
Comments (1)
DevExpress Support Team 7 years ago

    Hi Robert,

    Thank you for trying the Possible NullReference diagnostic beta feature. I have reproduced this false positive report. You will be notified when we prepare a fix.

    Answers approved by DevExpress Support

    created 7 years ago

    We have fixed the issue described in this ticket and will include the fix in our next maintenance update. To apply this solution before the official update, request a hotfix by clicking the corresponding link for product versions you require.

    Note: Hotfixes may be unavailable for beta versions and updates that are about to be released.

      Disclaimer: The information provided on DevExpress.com and affiliated web properties (including the DevExpress Support Center) is provided "as is" without warranty of any kind. Developer Express Inc disclaims all warranties, either express or implied, including the warranties of merchantability and fitness for a particular purpose. Please refer to the DevExpress.com Website Terms of Use for more information in this regard.

      Confidential Information: Developer Express Inc does not wish to receive, will not act to procure, nor will it solicit, confidential or proprietary materials and information from you through the DevExpress Support Center or its web properties. Any and all materials or information divulged during chats, email communications, online discussions, Support Center tickets, or made available to Developer Express Inc in any manner will be deemed NOT to be confidential by Developer Express Inc. Please refer to the DevExpress.com Website Terms of Use for more information in this regard.