failover question

Hello,

We have MySQL cluster server and I made simple Java client with jdbc driver.
Java client uses
"Using Master/Slave Replication with ReplicationConnection"

connection mode   (
http://dev.mysql.com/doc/connector/j/en/connector-j-reference-replication-connection.html).
It increased database performance, but don't solve failover problem :(

If I close access to master server (slave server connection is open), my
java client stops working.

Is any possibility to solve failover problem with jdbc and mysql ? (if one
server crashes, java client still works through another)


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Mindaugas