@Override
  public DiskEntry updateRecoveredEntry(Object key, DiskEntry.RecoveredEntry re) {
    throw new IllegalStateException(
        "updateRecoveredEntry should not be called when offline compacting");
  }
A disk region that is created when doing offline compaction.
geode-core/src/main/java/org/apache/geode/internal/cache/OfflineCompactionDiskRegion.java