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Posted to j-dev@xerces.apache.org by "Michael Glavassevich (JIRA)" <xe...@xml.apache.org> on 2010/07/05 04:46:49 UTC
[jira] Resolved: (XERCESJ-1455) New system property to limit entity
expansion
[ https://issues.apache.org/jira/browse/XERCESJ-1455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Glavassevich resolved XERCESJ-1455.
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Resolution: Won't Fix
Using system properties to configure the parser is problematic in many environments. It has a global effect in the JVM and thus can trample on the preferences of other applications (even those loaded by other ClassLoaders), possibly breaking them by doing so. See XERCESJ-976 for example. Adding this proposed system property would encourage more bad practice. Applications should be using the APIs for configuring the entity expansion limit and other settings.
> New system property to limit entity expansion
> ---------------------------------------------
>
> Key: XERCESJ-1455
> URL: https://issues.apache.org/jira/browse/XERCESJ-1455
> Project: Xerces2-J
> Issue Type: Improvement
> Components: JAXP (javax.xml.parsers)
> Affects Versions: 2.7.1, 2.8.0, 2.8.1, 2.9.0, 2.9.1, 2.10.0
> Environment: all
> Reporter: yuechen
> Priority: Trivial
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> when setting org.apache.xerces.util.SecurityManager, default entityExpansionLimit is 100,000. this is still too high in many cases. although security Manager does have a setter for entityExpansionLimit, it will be more user friendly to have a new system property to limit entity expansion, such as the one in Sun's JAXP implementation: http://java.sun.com/j2se/1.5.0/docs/guide/xml/jaxp/JAXP-Compatibility_150.html#JAXP_security
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