public static native byte[] get_u8_slice_bytes(long slice_ptr);
public static native long bytes_to_u8_vec(byte[] bytes);
public static native long new_txpointer_copy_data(byte[] txdata);
+ public static native void txpointer_free(long ptr);
public static native long vec_slice_len(long vec);
public static native long new_empty_slice_vec();