I try to upload large files(400mb+) to wildfly 8.1 and i get an IOException but i dont encounter any exception with the same conditions when using jboss 7 server:
Excep
I have found solution for this. I had this same issue and I solved it. It may help others.
For allowing more http request header size you need to change standalone.xml file of jboss or wildfly.
Add max-header-size attribute to default server and restart the server it will work Standalone.conf
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