The contract as stated in the javadoc is: * Maintains a frequency distribution. * <p> * Accepts int, long, char or Object values. New values added must be * comparable to those that have been added, otherwise the add method will * throw an IllegalArgumentException. * <p> * Integer values (int, long, Integer, Long) are not distinguished by type -- * i.e. <code>addValue(new Long(2)), addValue(2), addValue(2l)</code> all have * the same effect (similarly for arguments to <code>getCount,</code> etc.). * <p> * The values are ordered using the default (natural order), unless a * <code>Comparator</code>is supplied in the constructor.
Integer values are all stored as Long instances in the TreeMap. The problem is in addValue(object), which should treat Integer instances specially. I will fix this. Thanks for reporting the problem. Phil
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