Pojo fill()
        {
            id = 1;
            name = "pojo";
            ip = new ImmutablePojo(2, "ipojo");
            uuid = UUID.randomUUID();

            return this;
        }
Test ser/deser for immutable objects.

@author David Yu
@created Feb 7, 2011
protostuff-runtime/src/test/java/io/protostuff/runtime/ImmutableObjectsTest.java