The features of the xstream library are:

- ease of use. a high level facade is supplied that simplifies common
use cases.
- no mappings required. most objects can be serialized without need
for specifying mappings.
- performance. speed and low memory footprint are a crucial part of
the design, making it suitable for large object graphs or systems
with high message throughput.
- clean xml. no information is duplicated that can be obtained via
reflection. this results in xml that is easier to read for humans
and more compact than native java serialization.
- requires no modifications to objects. serializes internal fields,
including private and final. supports non-public and inner classes.
classes are not required to have default constructor.
- full object graph support. duplicate references encountered in the
object-model will be maintained. supports circular references.
- integrates with other xml apis. by implementing an interface,
xstream can serialize directly to/from any tree structure (not just
xml).
- customizable conversion strategies. strategies can be registered
allowing customization of how particular types are represented as
xml.
- error messages. when an exception occurs due to malformed xml,
detailed diagnostics are provided to help isolate and fix the
problem.
- alternative output format. the modular design allows other output
formats. xstream ships currently with json support and morphing.
this package contains the jenkins/hudson fork of this project.