[QUERY] Anonymous requests to storage blobs

Query/Question How do I make anonymous requests to Azure Storage? When I don’t provide any credentials to service client builder, it throws:

BlobServiceClient client = new BlobServiceClientBuilder()
    .endpoint("https://<account_name>.blob.core.windows.net")
    .buildClient();

Error:

java.lang.IllegalArgumentException: Authorization credentials must be set.
at com.azure.storage.blob.BlobServiceClientBuilder.lambda$buildAsyncClient$0(BlobServiceClientBuilder.java:98)
at com.azure.storage.blob.implementation.util.BuilderHelper.buildPipeline(BuilderHelper.java:61)
at com.azure.storage.blob.BlobServiceClientBuilder.buildAsyncClient(BlobServiceClientBuilder.java:90)
at com.azure.storage.blob.BlobServiceClientBuilder.buildClient(BlobServiceClientBuilder.java:82)

The below code works with version 8 of the SDK:

CloudBlobClient client = new CloudBlobClient(<endpoint>, StorageCredentialsAnonymous.ANONYMOUS);

Why is this not a Bug or a feature Request? NA

Setup (please complete the following information if applicable):

• OS: Linux
• IDE : IntelliJ
• Version of the Library used: 12.0.0

Information Checklist Kindly make sure that you have added all the following information above and checkoff the required fields otherwise we will treat the issuer as an incomplete report

• Query Added
• Setup information Added

[rickle-msft]

@SukruthKS We should have a PR out for this by end of day and it should go out at latest with our February release.

[shuk]

@rickle-msft, you are right, the mentioned error is connected to Jackson (ackson-databind-2.3.1-sources.jar) library that was used with SDK v12.0.

The exception stack trace: Exception in thread "main" java.lang.IllegalAccessError: tried to access method com.fasterxml.jackson.databind.ser.std.StdSerializer.<init>(Ljava/lang/Class;)V from class com.fasterxml.jackson.datatype.jsr310.JavaTimeModule at com.fasterxml.jackson.datatype.jsr310.JavaTimeModule.<init>(JavaTimeModule.java:144) at com.azure.core.implementation.serializer.jackson.JacksonAdapter.initializeObjectMapper(JacksonAdapter.java:258) at com.azure.core.implementation.serializer.jackson.JacksonAdapter.<init>(JacksonAdapter.java:74) at com.azure.core.implementation.serializer.jackson.JacksonAdapter.createDefaultSerializerAdapter(JacksonAdapter.java:108) at com.azure.core.implementation.RestProxy.createDefaultSerializer(RestProxy.java:629) at com.azure.core.implementation.RestProxy.create(RestProxy.java:691) at com.azure.storage.blob.implementation.ServicesImpl.<init>(ServicesImpl.java:58) at com.azure.storage.blob.implementation.AzureBlobStorageImpl.<init>(AzureBlobStorageImpl.java:213) at com.azure.storage.blob.implementation.AzureBlobStorageBuilder.build(AzureBlobStorageBuilder.java:90) at com.azure.storage.blob.specialized.BlobAsyncClientBase.<init>(BlobAsyncClientBase.java:113) at com.azure.storage.blob.BlobAsyncClient.<init>(BlobAsyncClient.java:102) at com.azure.storage.blob.BlobClientBuilder.buildAsyncClient(BlobClientBuilder.java:137) at com.azure.storage.blob.BlobClientBuilder.buildClient(BlobClientBuilder.java:96) at com.azure.storage.blob.BlobClientBuilder$buildClient$0.call(Unknown Source) at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115) at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:119)

After some experiments, I’ve found out that I used v12.0 instead of the last one and finally realized that my code works perfectly with v12.1 . As far as I understand the issue is already fixed by specifying Jackson dependencies explicitly (https://github.com/Azure/azure-sdk-for-java/commit/0ad7b6c2c32ef23fdd16ee9a19181ec2b9aa477d#diff-79be8518bf311112368782f9251d7480).