ConcurrentModificationException « concurrency « Java Thread Q&A

1. java.util.ConcurrentModificationException in JasperReports    stackoverflow.com

We have a web application deployed to Websphere 6.1.0.19 on Windows. We occasionally see this ConcurrentModificationException on a few of our reports. We are using JasperReports 2.0.5 in production. ...

2. Not modifying list but still get a ConcurrentModificationException    stackoverflow.com

Before your eyes glaze over at yet another ConcurrentModificationException question, this is not your typical ConcurrentModificationException question. I understand ConcurrentModificationExceptions but I don't understand why I'm getting one in the following code. ...

3. In Java how can this throw a ConcurrentModificationException in a single threaded program?    stackoverflow.com

I was reading this "Freuqent Java concurrency problems" question and got confused by an answer talking about java.util.ConcurrentModificationException. My understanding of the answer is that this can occur in a ...

4. ConcurrentModificationException over list    stackoverflow.com

I'm trying to iterate over a list of objects. I get the ConcurrentModificationException error. However I am not changing/removing the objects. Also the method game.getRooms() is synchronized. What am I doing ...

5. ConcurrentModificationException, clarification needed    stackoverflow.com

The following mockup code ends up in ConcurrentModificationException, that happens (as i understand it), due to the fact that i am iterating over a set, which i am modifying.

Set<String> data = ...