[SOLVED] OH2 & IHC and Java 1.8

OMG!!!

I have managed to fix the problem but it took me 2.5 days of various discoveries :slight_smile: Now I know a lot about ciphers and java security options :smiley:

Anyway - for those who might hit same problem:
CentOS (as well as any other atlest Red Hat distributive) has system wide security settings(/etc/crypto-policies/back-ends/java.config) where OS disables some ciphers on a system level.

So - aparently - one of recent crypto-policies rpm mention TLSv1 and TLSv1.1 as pasr ot jdk.tls.disabledAlgorithms. Then if java.security file contains security.useSystemPropertiesFile=true then this OS setting will be added to the list of disabled ciphers.

So - fo now - remove TLSv1, TLSv1.1 from /etc/crypto-policies/back-ends/java.config and restart openhab

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