Setting common instance metadata with Metadata class

[Electrosis Music]

I'm trying to set common instance metadata on my google cloud platform account by manipulating the fields of a metadata object and then sending a http request, using the Java API. Like so:

Metadata meta = new Metadata();

ArrayList<Metadata.Items> list = new ArrayList();

list.add(new Metadata.Items().set("test1", "one"));

list.add(new Metadata.Items().set("test2", "two"));

meta.setItems(list);

meta.set("test3", "three");

meta.set("uri", "urn:ogf:network:google.com:google-cloud:example-uri");

HttpRequest request = computeClient.projects().setCommonInstanceMetadata(projectID, meta).buildHttpRequest().execute();

After I run the above code, the metadata object ends up like so:

{items=[{test1=one}, {test2=two}], test3=three, uri=urn:ogf:network:google.com:google-cloud:example-uri}

Yet, after running the code actually clears out all metadata fields in common instance metadata, even if they had been set previously via a web browser. So, I know I'm calling the correct function but it's not working properly. The only thing I can think is that I must not be configuring the metadata object properly. If anyone has any experience with setting common instance metadata from API this way, your input would be very helpful.

Thanks.

[Kenworth (Google Cloud Platform)]

1- Java 7 or 8?
2- Try to remove 'buildHttpRequest()'
3- Provide the result of the 'response' object.

Per this docs, here is the boilerplate code for setting common instance metadata in Java:

/ Project ID for this request.

    String project = "my-project"; // TODO: Update placeholder value.

    // TODO: Assign values to desired fields of `requestBody`:

    Metadata requestBody = new Metadata();

    Compute computeService = createComputeService();

    Compute.Projects.SetCommonInstanceMetadata request =

        computeService.projects().setCommonInstanceMetadata(project, requestBody);

    Operation response = request.execute();

    // TODO: Change code below to process the `response` object:

    System.out.println(response);

[Electrosis Music]

1. I'm running Java 8

2. I tried removing .buildHttpRequest, but it doesn't change anything.

3. Here's the result of result.parseAsString(), with the service account email address removed.

{

 "kind": "compute#operation",

 "id": "6942523982935485097",

 "name": "operation-1506956358444-55a919e6fe3e0-0f8df5ed-02b14207",

 "operationType": "setMetadata",

 "targetLink": "https://www.googleapis.com/compute/v1/projects/elegant-whales-176421",

 "targetId": "271958204962",

 "status": "PENDING",

 "user": <email address>,

 "progress": 0,

 "insertTime": "2017-10-02T07:59:18.656-07:00",

 "selfLink": "https://www.googleapis.com/compute/v1/projects/elegant-whales-176421/global/operations/operation-1506956358444-55a919e6fe3e0-0f8df5ed-02b14207"

[Kenworth (Google Cloud Platform)]

Thank you for the additional information. It seems your case may potentially qualify as a defect report. As such, I recommend you file a public issue tracker so that proper attention will be given to it.

[Electrosis Music]

I managed to get it to work, by setting the key and value for each item separately. It does sound like a bug however, so I'll file it with the public issue tracker as you suggested.