NoSuchKeyException with S3Store

[dominikl]

I wasn't able to use the S3Store, always got NoSuchKeyExceptions. So I took the code of your test method https://github.com/zarr-developers/zarr-java/blob/main/src/test/java/dev/zarr/zarrjava/ZarrStoreTest.java#L59 put it into main method and ran it, got the same issue:

    public static void main(String[] args) throws ZarrException, IOException {
        S3Store s3Store = new S3Store(S3Client.builder()
                .region(Region.of("eu-west-1"))
                .credentialsProvider(AnonymousCredentialsProvider.create())
                .build(), "static.webknossos.org", "data");
            Array array = Array.open(s3Store.resolve("zarr_v3", "l4_sample", "color", "1"));
            System.out.println(array.metadata().shape);
    }

=>

Exception in thread "main" software.amazon.awssdk.services.s3.model.NoSuchKeyException: (Service: S3, Status Code: 404, Request ID: XFXFSFXGJW239G5Z, Extended Request ID: Rb1dohY0bRM5Y1oMSkkOO1W2J91Hi+emcyUD3YjfJC3EJQSL9NCmcmLHnafvEVKuEEvlsbZUYD8=) (SDK Attempt Count: 1) (Service: S3, Status Code: 404, Request ID: XFXFSFXGJW239G5Z, Extended Request ID: Rb1dohY0bRM5Y1oMSkkOO1W2J91Hi+emcyUD3YjfJC3EJQSL9NCmcmLHnafvEVKuEEvlsbZUYD8=)
        at software.amazon.awssdk.services.s3.model.NoSuchKeyException$BuilderImpl.build(NoSuchKeyException.java:150)
...
        at software.amazon.awssdk.services.s3.DefaultS3Client.headObject(DefaultS3Client.java:7623)
        at dev.zarr.zarrjava.store.S3Store.exists(S3Store.java:60)
        at dev.zarr.zarrjava.store.StoreHandle.exists(StoreHandle.java:56)
        at dev.zarr.zarrjava.core.Array.open(Array.java:39)
        at dev.zarr.zarrjava.Test.main(Test.java:17)

What am I missing? Because when I run the tests, all tests are passing!

[brokkoli71]

I think the reason the tests work but your code doesn't is because the tests use v3.Array, but your code uses core.Array. core.Array.open should definitely get fixed for S3Store, though!

Also, while debugging I noticed reading this array at (0,0,0,0) raises an error.