René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"List operations do not return nextPageToken which prevents proper paging","articleBody":"When implementing integration tests for DNS, I noticed that if one restricts the fields to be retrieved for a list operation, `iterateAll()` does not work properly. The following test would always fail:\n\n``` java\ndnsRecordIterator = DNS.listDnsRecords(zone.name(),\n    Dns.DnsRecordListOption.fields(Dns.DnsRecordField.TYPE),\n    Dns.DnsRecordListOption.pageSize(1)).iterateAll(); // to force the iterator fetch next page\n  int counter = 0;\n  while (dnsRecordIterator.hasNext()) {\n    counter++;\n  }\nassertEquals(2, counter);\n```\n\nThis is because the field selector silently prevents the service from returning the `nextPageToken`:\n\n`builder.append(\"rrsets(\").append(DnsRecordField.selector(fields)).append(')');`\n\ninstead of\n\n`builder.append(\"nextPageToken,rrsets(\").append(DnsRecordField.selector(fields)).append(')');`\n\nI recall seeing the same handling in resource manage. Having discussed this with @ajkannan, this is likely a bug. The same bug may be present in other parts of the library when a combination of listing and field restriction is possible.\n","author":{"url":"https://github.com/mderka","@type":"Person","name":"mderka"},"datePublished":"2016-02-25T01:28:06.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":3},"url":"https://github.com/665/google-cloud-java/issues/665"}