Solution2: If you have configured your Helix VCS server to have a minimum TLS version you need to start Jenkins with the additional flag '-DsecureSocketEnabledProtocols=VERSION'.
For example edit '/etc/default/jenkins' and it the falg to 'JAVA_ARGS':
JAVA_ARGS="-Djava.awt.headless=true -DsecureSocketEnabledProtocols=TLSv1.2"
This will need to be set on the master and every build slave.
{code:java} Solution2: If you have configured your Helix VCS server to have a minimum TLS version greater than v1.0 you need to start Jenkins with the additional flag '-DsecureSocketEnabledProtocols=VERSION' where 'VERSION' is a comma-separated list of accepted protocol versions.
For example edit '/etc/default/jenkins' and it the falg to 'JAVA_ARGS': JAVA_ARGS="-Djava.awt.headless=true -DsecureSocketEnabledProtocols=TLSv1.2"
This will need to be set on the master and every build slave.{code}