final ExternalIdBundle region = ExternalIdBundle.of("R", "R0");
List<ExchangeDocument> replacement = newArrayList();
for (int i = 1; i <= 4; i++) {
ManageableExchange ex = new ManageableExchange(bundle, "replace_" + i, region, null);
ExchangeDocument doc = new ExchangeDocument(ex);
doc.setVersionFromInstant(now.minus(60, SECONDS).plus(i * 30, SECONDS));
replacement.add(doc);
}
replacement.get(replacement.size() - 1).setVersionToInstant(now.plus(90, SECONDS));
_exgMaster.replaceAllVersions(latestDoc, replacement);