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via Coderanch by Kathiresan Chinnasamy, 1 year ago
java.lang.ClassCastException: it.sella.Prodatto1Test	at java.util.TreeMap.compare(TreeMap.java:1093)	at java.util.TreeMap.put(TreeMap.java:465)	at undefined.TestDao.treemapEx(TestDao.java:39)	at undefined.TestDao.main(TestDao.java:21)