final RequestList writeRequests = new RequestList();
for (int i = 0; i < testData.length; ++i) {
if ((i % 2) == 0) {
firstWriteRequests.addWrite(testTime + key + i, testData[i]);
}
writeRequests.addWrite(testTime + key + i, testData[i]);
readRequests.addRead(testTime + key + i);
}
ResultList results = conn.req_list(firstWriteRequests);
// evaluate the first write results: