allow eventNotifiers to be added asynchronously to a CamelContext whi…

…le a context is starting up to avoid the dreaded ConcurrentModificationException being thrown, fixes CAMEL-5531

git-svn-id: https://svn.apache.org/repos/asf/camel/branches/camel-2.9.x@1375938 13f79535-47bb-0310-9956-ffa450edef68

camel-core/src/main/java/org/apache/camel/management/DefaultManagementStrategy.java

@@ -16,9 +16,9 @@
  */
 package org.apache.camel.management;
 
-import java.util.ArrayList;
 import java.util.EventObject;
 import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
 
 import org.apache.camel.CamelContext;
 import org.apache.camel.CamelContextAware;
@@ -50,7 +50,7 @@
  */
 public class DefaultManagementStrategy implements ManagementStrategy, CamelContextAware {
 
-    private List<EventNotifier> eventNotifiers = new ArrayList<EventNotifier>();
+    private List<EventNotifier> eventNotifiers = new CopyOnWriteArrayList<EventNotifier>();
     private EventFactory eventFactory = new DefaultEventFactory();
     private ManagementNamingStrategy managementNamingStrategy;
     private ManagementObjectStrategy managementObjectStrategy;