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https://issues.apache.org/jira/browse/LOG4NET-460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Stefan Bodewig resolved LOG4NET-460.
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Resolution: Fixed
Fix Version/s: 1.3.0
also applied to the Parent and Additivity properties.
Fixed with svn revision 1670563
> log4net.Repository.Hierarchy.Logger ignores overridden virtual properties
> -------------------------------------------------------------------------
>
> Key: LOG4NET-460
> URL: https://issues.apache.org/jira/browse/LOG4NET-460
> Project: Log4net
> Issue Type: Bug
> Reporter: Joseph Edwards
> Fix For: 1.3.0
>
>
> log4net.Repository.Hierarchy.Logger declares Hierarchy property as virtual,
> however, when reading the value it uses the private field m_hierarchy, which
> is not the correct value (and probably null) if a derived class has
> overridden the Hierarchy property.
> This leads to a NullReferenceException when invoking the IsEnabledFor method,
> which is used in the Log method.
> Expected: overriding the Hierarchy property works
> Actual: overriding the Hierarchy property leaves the private field
> m_hierarchy unset, which causes NullReferenceExceptions to be thrown
> This issue also appears to apply for Level and m_level. The EffectiveLevel
> property accesses the private m_level field instead of the virtual Level
> property, which may also lead to NullReferenceException.
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