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via Jive Software Open Source by Guus der Kinderen, 1 year ago
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java.util.ConcurrentModificationException: 	at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)	at java.util.TreeMap$ValueIterator.next(TreeMap.java:1160)	at java.util.Collections$UnmodifiableCollection$1.next(Collections.java:1067)