Hi all, 

 

We’re using poi &  poi-ooxml 3.14 generating tens of thousands of rows to be 
downloaded.  

 

We have a problem that jvm keeps old gc 5 times/min but nothing could be 
collected. What’s more, when we looked into the jvmdump, it has 2G unreachable 
objects closed related with poi. We have no idea why that can’t be cleaned out. 

 

It might be better to use the stream api which we would try recently, but is 
there any idea why could this happen?

 

 

Attached detailed information:

code

 

And the jvmdump shows


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