When I am trying to connect to MySQL database through SSL I am getting exceptions such as SunCertPathBuilderException: unable to find valid certification path to requested target. In this scenario truststore was set in keycloak-server.json. You can find whole server log in attachment.

However, when I am starting keycloak with -Djavax.net.ssl.trustStore command line option with the same truststore file, SSL connection works as expected.