MySQL upload file size is too large com.mysql.jdbc.PacketTooBigException

The error message is as follows:
Com.mysql.jdbc.PacketTooBigException:Packet for query is too large (19485760 > 10485760). You can change this value on the server by setting the Max_allowed_packet ' variable.

Workaround 1:
You should set the value of "max_allowed_packet" as prompted.
Open the MySQL configuration file my.cnf (My.ini for Windows), and modify the following values.
Max_allowed_packet = 20M

Workaround 2:

Go to MySQL server on the MySQL command line run set global Max_allowed_packet = 20*1024*1024 exit the MySQL command line, and then log back in. Run command: Show VARIABLES like '%max_allowed_packet% '; see if Max_allowed_packet edits succeed

MySQL upload file size is too large com.mysql.jdbc.PacketTooBigException