Oscar Doral created VELTOOLS-198:
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Summary:
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
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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