Serialization Changes and Enhancements
in Java SE Development Kit 6
The following are enhancements to serialization in Java SE
Development Kit 6 (JDK). For a summary of enhancements in previous
releases, see Enhancements in Previous
Releases.
java.io.ObjectStreamClass.lookupAny- In previous releases, it was difficult to programmatically
obtain an
ObjectStreamClass instance for a
non-serializable Class, although doing so can be
desirable when customizing the stream format for class descriptors
(see 4413615 for
more information). The new method
ObjectStreamClass.lookupAny can now be used for this
purpose.
- Bug fix: delayed garbage collection
- In previous releases, bug 6232010 could
cause serializable classes and subclasses of
ObjectOutputStream and ObjectInputStream
to be strongly referenced long after their use in a serialization
operation, thus possibly delaying garbage collection of their
defining class loaders indefinitely. Internal caches in the
serialization implementation have been restructured to fix this
bug.
