How can add extra jdbc settings to a MySQL connection?

[Anonymous]

The environment that I am using is:

TOS 4.0.2 rev 43696
jdk1.6

I am experiencing sometimes a::::
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
I am trying to add things like: testOnBorrow=true;testOnReturn=false;testWhileIdle=true
I tried to add it to the Additional JDBC Parameters but I got an error. Any idea how can I do it? Any help will be appreciated.