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java.lang.ClassCastException: relatorio.Detalhe at java.util.TreeMap.compare(TreeMap.java:1085) at java.util.TreeMap.put(TreeMap.java:463) at java.util.TreeSet.add(TreeSet.java:209) at java.util.AbstractCollection.addAll(AbstractCollection.java:319) at java.util.TreeSet.addAll(TreeSet.java:255) at java.util.TreeSet.<init>(TreeSet.java:142) at relatorio.Assistente.q1023(Assistente.java:415) at relatorio.VisualSwing.q1023(VisualSwing.java:49) at relatorio.VisualSwing.<init>(VisualSwing.java:119) at relatorio.Visual.<init>(Visual.java:19) at relatorio.Visual.main(Visual.java:50)