A few minor errors were made, and a couple of opportunities were missed, in the
big generification putback (4964490).  Specifically:

  - java.io.SequenceInputStream(java.util.Enumeration<java.io.InputStream>)
    should be changed to accept an Enumeration<? extends InputStream>.

  - Each java.nio.$Type$Buffer class should implement Comparable<$Type$> rather
    than the raw type Comparable.  This change was in the original proposal for
    4964490 but was accidentally removed from the final version.  This change
    is safe since the buffer classes cannot be subclassed by users.  It's
    binary compatible since the compiler will provide bridge methods which
    accept Objects.

  - The java.nio.Charset class should implement Comparable<Charset> rather than
    Comparable<Object>.  This change is safe since the compareTo method in this
    class has always been final, so it's impossible for a subclass to have
    overridden it.  It's binary compatible since the compiler will provide a
    bridge method which accepts an Object.

  - The javax.swing.SpinnerDateModel, javax.swing.SpinnerNumberModel,
    javax.swing.text.InternationalFormatter, and javax.swing.JSlider classes
    should not be generified at this time since more research is needed to find
    the best generifications of these classes.

-- ###@###.### 2004/5/11