The DataFlavor class override Object.equals but not Object.hashCode. This violates the restriction that:

a.equals(b) ==> a.hashCode()==b.hashCode()

    Further, the equals function returns true when a DataFlavor is compare to
certain Strings and MimeTypes. This is extremely bad! It violates the
transitivity restriction on the equals method in a highly visible fashion.


If our customers use objects of this class as keys in Hashtables or
HashMaps, or elements in HashSets, the basic invariants of the collections will
be corrupted, leading to erratic behavior.