Synchronized and java.util.ConcurrentModificationException

Question

Hi,
I keep getting a java.util.ConcurrentModificationException when running the following code:
ArrayList tObjects = ...
synchronized (tObjects) {
Iterator tObjectsIterator = tObjects.iterator();
while (tObjectsIterator.hasNext()) {
Object tObject = tObjectsIterator.next(); -----> Exception
I run synchronized on tObjects so I can't understand why (and how) I get the Exception, can anyone help?
Thanks,
Iggy

Answer 1

thanks for the help, I still have some difficulties:
I have a (static) class ObjectsHolder which holds an ArrayList tObjects, I have various methods that access the ArrayList and return one/some elements.
I would like to synchrinize on the ArrayList tObjects in ObjectsHolder, but the holder returns the ArrayList itself I am unsure whether the access to the ArrayList will be synchronized even in the calling method.
A.