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Posted to log4j-dev@logging.apache.org by "Matt Sicker (JIRA)" <ji...@apache.org> on 2016/03/09 18:42:41 UTC
[jira] [Closed] (LOG4J2-802) Marker.isInstanceOf may not terminate
if parent Markers form a cycle
[ https://issues.apache.org/jira/browse/LOG4J2-802?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Matt Sicker closed LOG4J2-802.
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> Marker.isInstanceOf may not terminate if parent Markers form a cycle
> --------------------------------------------------------------------
>
> Key: LOG4J2-802
> URL: https://issues.apache.org/jira/browse/LOG4J2-802
> Project: Log4j 2
> Issue Type: Bug
> Components: API
> Affects Versions: 2.0.2
> Reporter: Matt Sicker
> Priority: Minor
> Labels: marker
>
> Say I have a marker A which has parents B and C. Say marker B has the parent A. Now suppose I'm checking if A is an instance of C. Depending on which order we added B and C to A, we may recurse down the B path first which would give us A ad infinitum.
> Now the way the API Markers are written shouldn't allow such a scenario to happen. However, such a scenario may be possible with user-defined Markers. Due to the theoretical nature of this problem, I think this is a rather minor issue.
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