/** {@inheritDoc} */ @Override public void writeExternal(ObjectOutput out) throws IOException { super.writeExternal(out); assert futId != null; assert miniId != null; assert ver != null; U.writeGridUuid(out, futId); U.writeGridUuid(out, miniId); U.writeCollection(out, entries); U.writeIntCollection(out, invalidParts); CU.writeVersion(out, ver); out.writeObject(err); }