Javadoc for Serialized Form of java.net.URI class (build 1.6.0-rc-b61)
contains the following description for the writeObject method:
  ...
  The only serializable field of a URI instance is its string field.
  That field is given a value, if it does not have one already, and then
  the ObjectOutputStream.defaultWriteObject() method of the given object-output
  stream is invoked.
  ...

However, another serializable field in the java.net.URI class is described
at the same javadoc:
  ...
  String iriString
  ...

Thus, this is an ambiguity. Please correct javadoc or mark the iriString firld as "transient".