if (!(p instanceof Externalizable)) {
throw new RuntimeException("p not Externalizable");
}
*/
p.setName("Harald Gliebe");
Address address = new Address();
address.setCity("Mannheim");
p.setAddress(address);
cache.attach("/person/harald", p);
return (Person) cache.find("/person/harald");
} catch (Throwable t) {
throw new RuntimeException(t);