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https://issues.apache.org/jira/browse/LUCENENET-500?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Christopher Currens resolved LUCENENET-500.
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Resolution: Fixed
Issue was in the WeakKey<T> class in WeakDictionary.cs. A generic wrapper for
WeakReference was being used but was inheriting from WeakReference which
requires UnmanagedCode security permissions. Removing the wrapper and doing
casting instead fixes the permissions issue.
> Lucene fails to run in medium trust ASP.NET Application
> -------------------------------------------------------
>
> Key: LUCENENET-500
> URL: https://issues.apache.org/jira/browse/LUCENENET-500
> Project: Lucene.Net
> Issue Type: Bug
> Components: Lucene.Net Core
> Affects Versions: Lucene.Net 3.0.3
> Reporter: Simon Svensson
> Assignee: Christopher Currens
> Fix For: Lucene.Net 3.0.3
>
>
> I'm having trouble upgrading a web application running under medium trust
> from 2.9.4 to 3.0.3. Code that previously worked now throws a
> SecurityException.
> [SecurityException: Request for the permission of type
> 'System.Security.Permissions.SecurityPermission, mscorlib, Version=4.0.0.0,
> Culture=neutral, PublicKeyToken=b77a5c561934e089' failed.]
> Lucene.Net.Support.WeakKey`1..ctor(T key) +0
> Lucene.Net.Support.WeakDictionary`2.get_Item(TKey key) +113
> Lucene.Net.Util.DefaultAttributeFactory.GetClassForInterface() +178
> Lucene.Net.Util.DefaultAttributeFactory.CreateAttributeInstance() +95
> Lucene.Net.Util.AttributeSource.AddAttribute() +375
> Lucene.Net.Analysis.CharTokenizer..ctor(TextReader input) +126
> Lucene.Net.Analysis.WhitespaceTokenizer..ctor(TextReader in) +37
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