for(int i = 0; i < machines.length; i++) {
OracleAgent oracleAgent = (OracleAgent) allAgents.get(machines[i]);
if (oracleAgent != null) {
try {
oracleAgent.stop(machines[i]);
oracleAgent.start(machines[i]);
} catch (Exception e) {
logger.severe("Failed to start on " + machines[i] + " " + e.toString());
logger.log(Level.FINE, "Exception", e);
ret = ret && false;