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https://issues.apache.org/jira/browse/FELIX-2473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard S. Hall closed FELIX-2473.
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      Assignee: Richard S. Hall
    Resolution: Fixed

I just applied a simple fix that merely special cases the case where there is 
no wildcard in a substring comparison. In that case, you simply need to return 
the result of equals() immediately...this works for empty string or any other 
non-wildcarded string.

> Subtring matching is incorreclty matching against an empty string
> -----------------------------------------------------------------
>
>                 Key: FELIX-2473
>                 URL: https://issues.apache.org/jira/browse/FELIX-2473
>             Project: Felix
>          Issue Type: Bug
>          Components: Framework, Specification compliance
>    Affects Versions: framework-3.0.1
>            Reporter: Richard S. Hall
>            Assignee: Richard S. Hall
>            Priority: Minor
>             Fix For: framework-3.2.0
>
>
> The substring matching, which is part of the SimpleFilter implementation is 
> incorrectly matching empty strings. For example, it says "" matches "foo". 
> This is happening because it uses empty strings as replacements for "*" when 
> doing wildcard matching, thus it gets confused when there really is an empty 
> string.

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