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Posted to dev@poi.apache.org by bu...@apache.org on 2014/04/29 17:58:41 UTC

[Bug 55612] Performance improvement (~11% up to ~92%) by adding a cache to HSSFCellStyle.getDataFormatString()

https://issues.apache.org/bugzilla/show_bug.cgi?id=55612

--- Comment #9 from Bernhard Seebass <se...@gmx.ch> ---
I can confirm that synchronization is a must. I just experienced an application
showing random behaviour due to multi threaded usage of
HSSFCellStyle.getDataFormatString()

However, as the current issue is already closed, I didn't find it at first and
filed a new one (BUG-56453).

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