CC'ing jdk8u-dev list. Fridrich, is this an 8u-only problem you are observing? Would you have some details about the problem so that I can file a bug for you?
Thanks, Severin On Tue, 2021-05-25 at 07:12 +0200, Fridrich Strba wrote: > Hello, good people, > > The java 11 implementation of TLS v1.3 was backported into java 8 > since some CPUs and it results sometimes in new handshake failures > with hard-to-updage-firmware devices whose shell life might be still > long. > > We somehow debugged those failures and some devices bomb because of > TLSv1.2 handshake containing the signature_algorihms_cert and > supported_versions extensions. > > TLSv1.3 handshake still contains both extensions as it should. This > could solve the differences of Java 8 behaviour between different > update > numbers. > > Please, have a look and comment > > Cheers > > Fridrich >