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Posted to dev@poi.apache.org by bu...@apache.org on 2019/06/03 15:28:42 UTC

[Bug 58896] autoSizeColumn() is extremely slow if worksheet contains merged cells

https://bz.apache.org/bugzilla/show_bug.cgi?id=58896

--- Comment #14 from Vladimir <ri...@gmail.com> ---
I also have a problem with autoSizeColumn with small number of columns and
data.
I have an application which generates XLSX files in different threads. 
I have changed the POI version from 3.17 to 4.1.0 and the application became to
hang on the autoSizeColumn(sheet, true) line. 
When I had removed this line or had changed to sheet.setColumnWidth(i,
SMALL_COLUMN_WIDTH) the problem was resolved.

There aren't excpetions in the log file!


-----Versions-----

1) OS: Windows 10

2) Java
java version "11.0.3" 2019-04-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.3+12-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.3+12-LTS, mixed mode)

3)
POI version: 4.1.0

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