java.util.NoSuchElementException
		at java.util.HashMap$HashIterator.nextEntry(HashMap.java:790)
		at java.util.HashMap$ValueIterator.next(HashMap.java:817)
		at java.util.AbstractCollection.toArray(AbstractCollection.java:176)
		at java.util.ArrayList.<init>(ArrayList.java:136)
		at wicket.util.watch.ModificationWatcher$1.run(ModificationWatcher.java:161)
		at wicket.util.thread.Task$1.run(Task.java:111)
		at java.lang.Thread.run(Thread.java:613): null
unable to send message SimpleMailMessage: from=donotreply@teachscape.com; replyTo=donotreply@teachscape.com; to=; cc=; bcc=; sentDate=2007-03-29 21:32:53.0; subject=ERROR : Unhandled exception thrown by user code in task Modification..; text=on 29.3.2007 21:32:53 CEST
2007-03-29 21:32:53,585 ERROR wicket.util.thread.Task - Unhandled exception thrown by user code in task ModificationWatcher