assertNull(resp.getPreviousEntry());
_verifyCounts(1L, store);
// Then try to overwrite with a newer timestamp
timeMaster.advanceCurrentTimeMillis(1000);
StorableCreationMetadata metadata2 = new StorableCreationMetadata(null,
calcChecksum32(DATA_REPLACE), HashConstants.NO_CHECKSUM);
metadata.uncompressedSize = -1L;
resp = store.upsertConditionally(StoreOperationSource.REQUEST, null,