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https://issues.apache.org/jira/browse/VELTOOLS-198?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Claude Brisson resolved VELTOOLS-198.
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Fix Version/s: 3.2
4.0
Assignee: Claude Brisson
Resolution: Fixed
> org.apache.velocity.tools.ConversionUtils#getNumberFormat(java.lang.String,
> java.util.Locale) is not thread safe for custom formats
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: VELTOOLS-198
> URL: https://issues.apache.org/jira/browse/VELTOOLS-198
> Project: Velocity Tools
> Issue Type: Bug
> Components: GenericTools
> Affects Versions: 3.1
> Reporter: Oscar Doral
> Assignee: Claude Brisson
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.2, 4.0
>
>
> org.apache.velocity.tools.ConversionUtils holds a cache for custom formats so
> it can reuse formatters across different requests:
> {code:java}
> private static ConcurrentMap<String,NumberFormat> customFormatsCache = new
> ConcurrentHashMap<String,NumberFormat>(); {code}
> Problem is formatters don't use to be thread safe so if same formatter is
> used at the same time by two different threads we can get errors depending on
> race conditions.
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