A complete list of Connector/J 8.0 connection properties are available in connector-j-reference-set-config. The following are connection properties that have been changed (removed, added, have their names changed, or have their default values changed) going from Connector/J 5.1 to 8.0.
Properties that have been removed (do not use them during connection):
utf8OutsideBmpIncludedColumnNamePattern: MySQL 5.6 and later supports the utf8mb4 character set, which is the character set that should be used by Connector/J applications for supporting characters beyond the Basic Multilingual Plane (BMP) of Unicode Version 3.
useJvmCharsetConverters: JVM character set conversion is now used in all cases
The following date and time properties:
nullNamePatternMatchesAll(removed since release 8.0.9)
Properties that have been added:
mysqlx.useAsyncProtocol(deprecated since release 8.0.22)
Property that has its name changed:
Properties that have their default values changed: