@Override
    public <T> void handleUnknownField(int fieldNumber, Schema<T> schema) throws IOException {
        skipField(lastTag);
    }
Reads and discards an entire message. This will read either until EOF or until an endgroup tag, whichever comes
first.
jraft-rheakv/rheakv-core/src/main/java/com/alipay/sofa/jraft/rhea/serialization/impl/protostuff/io/NioBufInput.java