ISPN-3498 Cannot construct org.infinispan.util.KeyValuePair as it does n...

https://issues.jboss.org/browse/ISPN-3498

* xstream-based serialization doesn't work nicely with azul. I've used an shared instance of the real StreamingMarshaller for instances of the TestObjectStreamMarshaller.
* this class builds an single local CacheManager instance in order to populate the StreamingMarshaller correctly. This shouldn't be a burden on the test suite and solves the azul problem nicely