public static <T> void mergeFrom(InputStream in, T message, Schema<T> schema)
            throws IOException
    {
        IOUtil.mergeFrom(in, message, schema, false);
    }
Merges the {@code message} from the {@link InputStream} using the given {@code schema}.
protostuff-core/src/main/java/io/protostuff/ProtobufIOUtil.java