Author: kfujino
Date: Mon Jul 22 08:42:33 2013
New Revision: 1505627
URL: http://svn.apache.org/r1505627
Log:
Avoid ConcurrentModificationException when sending a heartbeat.
Modified:
tomcat/trunk/java/org/apache/catalina/tribes/group/GroupChannel.java
Modified: tomcat/trunk/java/org/apache/catalina/tribes/group/GroupChannel.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/java/org/apache/catalina/tribes/group/GroupChannel.java?rev=1505627&r1=1505626&r2=1505627&view=diff
==============================================================================
--- tomcat/trunk/java/org/apache/catalina/tribes/group/GroupChannel.java
(original)
+++ tomcat/trunk/java/org/apache/catalina/tribes/group/GroupChannel.java Mon
Jul 22 08:42:33 2013
@@ -18,8 +18,9 @@ package org.apache.catalina.tribes.group
import java.io.Serializable;
-import java.util.ArrayList;
import java.util.Iterator;
+import java.util.List;
+import java.util.concurrent.CopyOnWriteArrayList;
import org.apache.catalina.tribes.ByteMessage;
import org.apache.catalina.tribes.Channel;
@@ -92,12 +93,12 @@ public class GroupChannel extends Channe
/**
* A list of membership listeners that subscribe to membership
announcements
*/
- protected final ArrayList<Object> membershipListeners = new ArrayList<>();
+ protected final List<Object> membershipListeners = new
CopyOnWriteArrayList<>();
/**
* A list of channel listeners that subscribe to incoming messages
*/
- protected final ArrayList<Object> channelListeners = new ArrayList<>();
+ protected final List<Object> channelListeners = new
CopyOnWriteArrayList<>();
/**
* If set to true, the GroupChannel will check to make sure that
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