"Use explicit ECC parameters" is ignored when a Statedump is imported. The correct value is in the Statedump, but something goes wrong during the import and the "Use explicit ECC parameters" is always disabled even if enabled in the Statedump.
This is not a cache issue. JBoss was restarted and "Use explicit ECC parameters" was still disabled.
I suspect something is going wrong in StatedumpSessionBean.importCryptoTokens.