no-jira: if getter/setter then private variables

src/main/java/org/olat/commons/coordinate/cluster/jms/ClusterEventBus.java

@@ -67,11 +67,11 @@ public class ClusterEventBus extends AbstractEventBus implements MessageListener
 	//ores helper is limited to 50 character, so truncate it
 	static final OLATResourceable CLUSTER_CHANNEL = OresHelper.createOLATResourceableType(ClusterEventBus.class.getName().substring(0, 50));
 
-	ClusterConfig clusterConfig;
+	private ClusterConfig clusterConfig;
 
 	// settings
-	long sendInterval = 1000; // 1000 miliseconds between each "ping/alive/info" message, can be set using spring
-	long jmsMsgDelayLimit = 5000;  // max duration of ClusterInfoEvent send-receive time in ms
+	private long sendInterval = 1000; // 1000 miliseconds between each "ping/alive/info" message, can be set using spring
+	private long jmsMsgDelayLimit = 5000;  // max duration of ClusterInfoEvent send-receive time in ms
 	
 	// counters
 	private long latestSentMsgId = -1;