((CAS) cas).setDocumentText("Create the sofa for the inital view");
assertTrue(((CASImpl) cas).isBackwardCompatibleCas());
CASCompleteSerializer ser = Serialization.serializeCASComplete(cas);
// deserialize into a new CAS with a type system that only contains the builtins
CAS newCas = CasCreationUtils.createCas(new TypeSystemDescription_impl(), null, null);
try {
Serialization.deserializeCASComplete(ser, (CASImpl) newCas);
} catch (Exception e) {
assertTrue(false);