Deserialization fails for com.microsoft.azure.ExpressionEvaluationDetails class

[petr-lindovsky]

The ExpressionEvaluationDetails class (https://github.com/Azure/autorest-clientruntime-for-java/blob/a869a9a68d5730e76a469bbe10d0e83b1a5532e3/azure-client-runtime/src/main/java/com/microsoft/azure/ExpressionEvaluationDetails.java) defines targetValue as List<String> but when calling

PUT https://management.azure.com/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}?api-version=2021-04-01

we see response bodies where targetValue is a String, which causes deserialization failures.

Please fix the class to cover such response bodies.

Example exception:

com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot deserialize instance of `java.util.ArrayList<java.lang.Object>` out of VALUE_STRING token
 at [Source: (String)"{"policyDefinitionDisplayName":"Require a tag on resource groups","evaluationDetails":{"evaluatedExpressions":[{"result":"True","expressionKind":"Field","expression":"type","path":"type","expressionValue":"Microsoft.Resources/subscriptions/resourcegroups","targetValue":"Microsoft.Resources/subscriptions/resourceGroups","operator":"Equals"},{"result":"True","expressionKind":"Field","expression":"tags[Owner]","path":"tags[Owner]","targetValue":"false","operator":"Exists"}]},"policyDefinitionId":"/"[truncated 533 chars]; line: 1, column: 271] (through reference chain: com.microsoft.azure.CloudError["additionalInfo"]->java.util.ArrayList[0]->com.microsoft.azure.PolicyViolationErrorInfo["evaluationDetails"]->com.microsoft.azure.EvaluationDetails["evaluatedExpressions"]->java.util.ArrayList[0]->com.microsoft.azure.ExpressionEvaluationDetails["targetValue"])
        at rx.exceptions.Exceptions.propagate(Exceptions.java:57) ~[rxjava-1.3.8.jar:1.3.8]
        at rx.observables.BlockingObservable.blockForSingle(BlockingObservable.java:463) ~[rxjava-1.3.8.jar:1.3.8]
        at rx.observables.BlockingObservable.single(BlockingObservable.java:340) ~[rxjava-1.3.8.jar:1.3.8]
        at com.microsoft.azure.management.resources.fluentcore.model.implementation.CreatableUpdatableImpl.create(CreatableUpdatableImpl.java:252) ~[azure-mgmt-resources-1.41.2.jar:1.41.2]
        at com.microsoft.azure.management.resources.fluentcore.model.implementation.CreatableUpdatableImpl.create(CreatableUpdatableImpl.java:34) ~[azure-mgmt-resources-1.41.2.jar:1.41.2]
...

Example response body:

{
    "error": {
        "code": "RequestDisallowedByPolicy",
        "target": "myresourcegroup",
        "message": "Resource 'myresourcegroup' was disallowed by policy. Policy identifiers: '[{\"policyAssignment\":{\"name\":\"Require Owner tag on resource groups\",\"id\":\"/subscriptions/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/providers/Microsoft.Authorization/policyAssignments/cccccccccccccccccccccccc\"},\"policyDefinition\":{\"name\":\"Require a tag on resource groups\",\"id\":\"/providers/Microsoft.Authorization/policyDefinitions/bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb\"}}]'.",
        "additionalInfo": [
            {
                "type": "PolicyViolation",
                "info": {
                    "policyDefinitionDisplayName": "Require a tag on resource groups",
                    "evaluationDetails": {
                        "evaluatedExpressions": [
                            {
                                "result": "True",
                                "expressionKind": "Field",
                                "expression": "type",
                                "path": "type",
                                "expressionValue": "Microsoft.Resources/subscriptions/resourcegroups",
                                "targetValue": "Microsoft.Resources/subscriptions/resourceGroups",
                                "operator": "Equals"
                            },
                            {
                                "result": "True",
                                "expressionKind": "Field",
                                "expression": "tags[Owner]",
                                "path": "tags[Owner]",
                                "targetValue": "false",
                                "operator": "Exists"
                            }
                        ]
                    },
                    "policyDefinitionId": "/providers/Microsoft.Authorization/policyDefinitions/bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb",
                    "policyDefinitionName": "bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb",
                    "policyDefinitionEffect": "deny",
                    "policyAssignmentId": "/subscriptions/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/providers/Microsoft.Authorization/policyAssignments/cccccccccccccccccccccccc",
                    "policyAssignmentName": "cccccccccccccccccccccccc",
                    "policyAssignmentDisplayName": "Require Owner tag on resource groups",
                    "policyAssignmentScope": "/subscriptions/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa"
                }
            }
        ]
    }
}