in expiration/src/main/java/org/apache/geode_examples/expiration/Example.java [67:75]
void insertValues(Region<Integer, String> region, Collection<Integer> integers) {
Map values = new HashMap<Integer, String>();
for (Integer i : integers) {
values.put(i, i.toString());
}
region.putAll(values);
System.out.println(
ISO_8601_TIMESTAMP_FORMAT.format(new Date()) + "\tInserted " + values.size() + " values.");
}