Author: markt
Date: Tue Jan 9 21:06:34 2018
New Revision: 1820701
URL: http://svn.apache.org/viewvc?rev=1820701&view=rev
Log:
Fix ConcurrentModificationException
Modified:
tomcat/trunk/webapps/docs/changelog.xml
tomcat/trunk/webapps/examples/WEB-INF/classes/async/Stockticker.java
Modified: tomcat/trunk/webapps/docs/changelog.xml
URL:
http://svn.apache.org/viewvc/tomcat/trunk/webapps/docs/changelog.xml?rev=1820701&r1=1820700&r2=1820701&view=diff
==============================================================================
--- tomcat/trunk/webapps/docs/changelog.xml (original)
+++ tomcat/trunk/webapps/docs/changelog.xml Tue Jan 9 21:06:34 2018
@@ -178,6 +178,11 @@
in the stock ticker example Servlet. (markt)
</fix>
<fix>
+ <bug>61886</bug>: Prevent <code>ConcurrentModificationException</code>
+ when running the asynchronous stock ticker in the examples web
+ application. (markt)
+ </fix>
+ <fix>
<bug>61910</bug>: Clarify the meaning of the <code>allowLinking</code>
option in the documentation web application. (markt)
</fix>
Modified: tomcat/trunk/webapps/examples/WEB-INF/classes/async/Stockticker.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/webapps/examples/WEB-INF/classes/async/Stockticker.java?rev=1820701&r1=1820700&r2=1820701&view=diff
==============================================================================
--- tomcat/trunk/webapps/examples/WEB-INF/classes/async/Stockticker.java
(original)
+++ tomcat/trunk/webapps/examples/WEB-INF/classes/async/Stockticker.java Tue
Jan 9 21:06:34 2018
@@ -17,14 +17,15 @@
package async;
import java.text.DecimalFormat;
-import java.util.ArrayList;
+import java.util.List;
import java.util.Random;
+import java.util.concurrent.CopyOnWriteArrayList;
import java.util.concurrent.atomic.AtomicInteger;
public class Stockticker implements Runnable {
public volatile boolean run = true;
protected final AtomicInteger counter = new AtomicInteger(0);
- final ArrayList<TickListener> listeners = new ArrayList<>();
+ final List<TickListener> listeners = new CopyOnWriteArrayList<>();
protected volatile Thread ticker = null;
protected volatile int ticknr = 0;
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