A user running geoserver on windows noticed that when using a
cascading wms layer, temporary files were being written out to disk
for each request. We investigated, and stumbled across this
explanation:

http://frequal.com/java/PreventUnexpectedImageIODiskWrites.html

It turns out that it actually resolved the issue. To verify, we
created a GeoServerInitializer in a separate module, and the jar was
added to geoserver. There were no more writes on the requests.

Are there any possible consequences here? If not, can this be set on
geoserver startup in general? And if this isn't something that should
be set globally for everybody, is it reasonable to create a
GeoServerInitializer and put the call in there?

Thanks,
Robert

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