CloudExceptions are missing Message

Related to #1519, many operations seem to throw empty CloudExceptions.

The reason for the Exception is written into log, but CloudException still has null as message.

For example:

try {
    azure.virtualMachineScaleSets()
        .define("test1")
    	.withRegion("iceland")
    	.withExistingResourceGroup(group)
    	.withSku(VirtualMachineScaleSetSkuTypes.STANDARD_D1_V2)
    	.withExistingPrimaryNetworkSubnet(network, subnet)
    	.withoutPrimaryInternetFacingLoadBalancer()
    	.withoutPrimaryInternalLoadBalancer()
    	.withPopularLinuxImage(KnownLinuxVirtualMachineImage.UBUNTU_SERVER_16_04_LTS)
    	.withRootUsername("secret")
    	.withRootPassword("itsNOTsecret12345")
    	.withoutOverProvisioning()
    	.withCapacity(1)
    	.create();
} catch (CloudException ce) {
    System.err.println(ce + ": " + ce.getMessage());
}

The message in the end is: com.microsoft.azure.CloudException: null

In the log entries, however I see a good description for the error:

[RxIoScheduler-2] INFO com.microsoft.azure.management.compute.VirtualMachineScaleSets createOrUpdate - 527-byte body:
{"error":{"code":"LocationNotAvailableForResourceType","message":"The provided location 'iceland' is not available for resource type 'Microsoft.Compute/virtualMachineScaleSets'. List of available regions for the resource type is 'eastus,eastus2,westus,centralus,northcentralus,southcentralus,northeurope,westeurope,eastasia,southeastasia,japaneast,japanwest,australiaeast,australiasoutheast,brazilsouth,southindia,centralindia,westindia,canadacentral,canadaeast,westus2,westcentralus,uksouth,ukwest,koreacentral,koreasouth'."}}

CloudException also contains field body (CloudError). The body should contain errorcode, message and details. In this case all of them were empty.

[jianghaolu]

This is fixed in 1.0.0.

The cause is in beta5, the default constructor of RestClient.Builder takes JacksonAdapter which doesn’t handle the Azure specifics as AzureJacksonAdapter does, including handling the error body response. (https://github.com/Azure/autorest-clientruntime-for-java/blob/v1.0.0-beta5/client-runtime/src/main/java/com/microsoft/rest/RestClient.java#L210)

1.0.0 is coming out latest next Monday. To work around, please create your own RestClient with .withSerializerAdapter(new AzureJacksonAdapter()).withResponseBuilderFactory(new AzureResponseBuilder.Factory()).

[TimoKramer]

I’ve got the same problem: no message and no hint on what is wrong.