public void initialize(Map<Long, AbstractDiskRegion> drMap, boolean gcRVV) throws IOException {
      opCode = OPLOG_RVV;
      byte[] rvvBytes = serializeRVVs(drMap, gcRVV);
      value = new DiskEntry.Helper.ByteArrayValueWrapper(true, rvvBytes);
      // Size is opCode + length + end of record
      size = 1 + rvvBytes.length + 1;
    }
How many bytes it will be when serialized
geode-core/src/main/java/org/apache/geode/internal/cache/Oplog.java