IteratorSetting is = new IteratorSetting(5, RegExFilter.class);
RegExFilter.setRegexs(is, s2, null, null, null, true, true);
Scanner scanner = conn.createScanner(table, new Authorizations());
scanner.addScanIterator(is);
assertTrue("Client side iterator couldn't find a match when it should have", scanner.iterator().hasNext());
conn.tableOperations().attachIterator(table, is);
assertTrue("server side iterator couldn't find a match when it should have", conn.createScanner(table, new Authorizations()).iterator().hasNext());