POI Out of memory error

I am using POI to create a spreadsheet. This is a large spreadsheet, about
375,000 rows and 15 columns.

The job crashes with this message in the joblog.


JVMDUMP055I Processing dump event "systhrow", detail
"java/lang/OutOfMemoryError", exception "Java heap space" at 2025/09/25
11:51:58 - please wait.


Is it possible to increase the heap space when running POI? I'd like to
increase it just for this job, if possible. The program uses
ss_begin_object_group with a parameter value of 3,000,000 when it
starts to create the spreadsheet.

No matter how much this parameter value increases, I still get the crash
at the approximate same row.

We're running POI 3.12

Any ideas?

Thank you,

Doug



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