This is due to the version of JVM provided with the Java Connector Server component and the JDBC driver version supportability of TLS. These steps describe how to update both components on an Linux Enterprise Manager. If you have installed any Linux Distribution Servers or Linux Load Balancing Enterprise Manager those servers will also have to be upgraded.
The JVM upgrade will use the existing JDK provided with the install of the Enterprise Manager Server. You maybe using a custom path and upgrading Java on regular intervals to different paths. Please keep these steps in mind when you upgrade Java JDK on the system.
The SQL JDBC upgrade will require you to download the latest from Microsoft.