com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown charset 'macc

mysql应用启动报下面错，有哪位大神知道是什么原因么？

2017-04-29 00:07:02 ERROR 10.117.58.68 Druid-ConnectionPool-Create-203715427 MS  com.alibaba.druid.pool.DruidDataSource$CreateConnectionThread run  create connection error  2017-04-29 0