RedisURI.Builder#withSsl(RedisURI) not working with SslVerifyMode#CA

[kotovdv]

Bug Report

Current Behavior

RedisURI.Builder#withSsl(RedisURI) does not copy SslVerifyMode setting properly if it is set to SslVerifyMode#CA.

What it does instead is:

1. It produces a boolean value using RedisURI#isVerifyPeer (which in case of SslVerifyMode#CA will result in true).
2. It passes this boolean value to RedisURI.Builder#withVerifyPeer(boolean) which results in SslVerifyMode.FULL being set instead of SslVerifyMode#CA.

This logic is used in some internals of the lettuce itself (like RedisMasterReplicaNode class) which causes problems for us.

Expected behavior/code

Resulting state RedisURI.Builder should have SslVerifyMode#CA instead of SslVerifyMode#FULL

Possible Solution

Change the line in RedisURI.Builder#withSsl(io.lettuce.core.RedisURI) from

withVerifyPeer(source.isVerifyPeer());

to

withVerifyPeer(source.getVerifyMode());