protected String getUtf8(Deserializer buf) {
        return Utf8.toString(getRawUtf8Bytes(buf));
    }
Creates an instance of a given class specification. All instantiation-type exceptions are consumed and
wrapped inside a runtime exception so that calling methods can let this propagate without declaring them
thrown.
vespajlib/src/main/java/com/yahoo/vespa/objects/Identifiable.java