I would suggest taking a look at the following guide. The fix here may be as easy as upgrading the driver. If that doesn’t work though, I would suggest looking at the other options. Since you were on 8.1.13 which has TLSv1 and TLSv1.1 disabled by default, it’s possible someone had previously re-enabled those in the java security file which is why you were able to connect before upgrading to 8.1.19. I would highly suggest upgrading your SQL Server to support later versions of TLS and upgrading your JDBC driver instead of just re-enabling the older versions of TLS.