question: public void testBug22643 ( ) throws Exception { checkPingQuery ( this . conn ) ; Connection replConnection = getMasterSlaveReplicationConnection ( ) ; try { checkPingQuery ( replConnection ) ; } finally { if ( replConnection != null ) { replConnection . close ( ) ; } } Connection lbConn = getLoadBalancedConnection ( ) ; try { checkPingQuery ( lbConn ) ; } finally { if ( lbConn != null ) { lbConn . close ( ) ; } } }
target:  Test of a new feature to fix BUG 22643, specifying a "validation query" in your connection pool that starts with "slash-star ping slash-star" _exactly_ will cause the driver to " + instead send a ping to the server (much lighter weight), and when using a ReplicationConnection or a LoadBalancedConnection, will send the ping across all active connections.