Remove obsolete custom service package code

generator/.DevConfigs/0C9C1129-CEB5-41BA-B24F-95A5E89E4573.json

@@ -0,0 +1,54 @@
+{
+  "services": [
+    {
+      "serviceName": "CloudFront",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed the AmazonCloudFrontUtil utility code that was no longer being used."
+      ]
+    },  
+    {
+      "serviceName": "DynamoDBv2",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed the DynamoDBContextTableNamePrefix property. Users should call AWSConfigsDynamoDB.Context.TableNamePrefix instead of AWSConfigsDynamoDB.Context.DynamoDBContextTableNamePrefix."
+      ]
+    },
+    {
+      "serviceName": "EC2",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed the VPC utilizes code. It was terribly out of date even referring to EC2 instance type that has been deprecated for years.",
+		"Removed the image utilities used for looking up EC2 amis for Windows OS."
+      ]
+    },
+    {
+      "serviceName": "IoT",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed a legacy customization for NextToken override to refer to the actual modeled pagination token."
+      ]
+    },
+    {
+      "serviceName": "Lambda",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed obsolete InvokeAsync service client operation to avoid confusion with the Async suffix added for async .NET methods."
+      ]
+    },
+    {
+      "serviceName": "SageMakerRuntime",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed obsolete constructors for PayloadPart."
+      ]
+    },
+    {
+      "serviceName": "SecurityToken",
+      "type": "patch",
+      "changeLogMessages": [
+        "Removed the deprecated STS assume role credential provider since users should be using the one in core."
+      ]
+    }		
+  ]
+}

generator/ServiceModels/lambda/lambda.customizations.json

@@ -1,16 +1,5 @@
 {
     "shapeModifiers": {
-        "InvokeAsyncRequest": {
-            "deprecatedMessage": "For .NET 3.5/4.5, API InvokeAsyncResponse InvokeAsync(InvokeAsyncRequest) is deprecated, use InvokeResponse Invoke(InvokeRequest), or Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead. For .NET Core, Task<InvokeAsyncResponse> InvokeAsyncAsync(InvokeAsyncRequest, CancellationToken) is deprecated, use Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead.",
-            "modify": [
-                {
-                    "InvokeArgs": { "emitPropertyName": "InvokeArgsStream" }
-                }
-            ]
-        },
-        "InvokeAsyncResponse": {
-            "deprecatedMessage": "For .NET 3.5/4.5, API InvokeAsyncResponse InvokeAsync(InvokeAsyncRequest) is deprecated, use InvokeResponse Invoke(InvokeRequest), or Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead. For .NET Core, Task<InvokeAsyncResponse> InvokeAsyncAsync(InvokeAsyncRequest, CancellationToken) is deprecated, use Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead."
-        },
         "InvocationRequest": {
             "modify": [
                 {
@@ -74,7 +63,7 @@
     },
     "operationModifiers": {
         "InvokeAsync": {
-            "deprecatedMessage": "For .NET 3.5/4.5, API InvokeAsyncResponse InvokeAsync(InvokeAsyncRequest) is deprecated, use InvokeResponse Invoke(InvokeRequest), or Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead. For .NET Core, Task<InvokeAsyncResponse> InvokeAsyncAsync(InvokeAsyncRequest, CancellationToken) is deprecated, use Task<InvokeResponse> InvokeAsync(InvokeRequest, CancellationToken) instead."
+            "exclude": true
         }
     },
     "emitIsSetProperties": {

sdk/code-analysis/ServiceAnalysis/Lambda/Generated/PropertyValueRules.xml

@@ -840,12 +840,6 @@
     <max>1024</max>
     <pattern>(\$LATEST|[0-9]+)</pattern>
   </property-value-rule>
-  <property-value-rule>
-    <property>Amazon.Lambda.Model.InvokeAsyncRequest.FunctionName</property>
-    <min>1</min>
-    <max>170</max>
-    <pattern>(arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_\.]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?</pattern>
-  </property-value-rule>
   <property-value-rule>
     <property>Amazon.Lambda.Model.InvokeWithResponseStreamRequest.FunctionName</property>
     <min>1</min>
@@ -1743,6 +1737,12 @@
     <property>Amazon.Lambda.Model.ImageConfig.WorkingDirectory</property>
     <max>1000</max>
   </property-value-rule>
+  <property-value-rule>
+    <property>Amazon.Lambda.Model.InvokeAsyncRequest.FunctionName</property>
+    <min>1</min>
+    <max>170</max>
+    <pattern>(arn:(aws[a-zA-Z-]*)?:lambda:)?([a-z]{2}(-gov)?-[a-z]+-\d{1}:)?(\d{12}:)?(function:)?([a-zA-Z0-9-_\.]+)(:(\$LATEST|[a-zA-Z0-9-_]+))?</pattern>
+  </property-value-rule>
   <property-value-rule>
     <property>Amazon.Lambda.Model.Layer.Arn</property>
     <min>1</min>

sdk/src/Core/Amazon.Runtime/Internal/Endpoints/StandardLibrary/Fn.cs

@@ -367,6 +367,8 @@ public static string Interpolate(string template, Dictionary<string, object> ref
         /// </summary>
         public static string InterpolateJson(string json, Dictionary<string, object> refs)
         {
+            if (string.IsNullOrEmpty(json))
+                return string.Empty;
             try
             {
                 using JsonDocument doc = JsonDocument.Parse(json);
@@ -381,7 +383,7 @@ public static string InterpolateJson(string json, Dictionary<string, object> ref
             }
             catch (JsonException)
             {
-                return "";
+                return string.Empty;
             }
         }
 

sdk/src/Core/Amazon.Runtime/Pipeline/Handlers/EndpointDiscoveryHandler.cs

@@ -69,7 +69,10 @@ public override async System.Threading.Tasks.Task<T> InvokeAsync<T>(IExecutionCo
         {
             var requestContext = executionContext.RequestContext;
             var regionalEndpoint = requestContext.Request.Endpoint;
-            PreInvoke(executionContext);
+
+            var immutableCredentials = (requestContext.Identity as AWSCredentials)?.GetCredentialsAsync();
+
+            PreInvoke(executionContext, immutableCredentials);
 
             try
             {
@@ -107,7 +110,7 @@ public static void EvictCacheKeyForRequest(IRequestContext requestContext, Uri r
             requestContext.Request.Endpoint = regionalEndpoint;
         }
 
-        public static void DiscoverEndpoints(IRequestContext requestContext, bool evictCacheKey)
+        public static void DiscoverEndpoints(IRequestContext requestContext, bool evictCacheKey, ImmutableCredentials credentials)
         {
             var discoveryEndpoints = ProcessEndpointDiscovery(requestContext, evictCacheKey, requestContext.Request.Endpoint);
             if (discoveryEndpoints != null)
@@ -130,10 +133,9 @@ public static void DiscoverEndpoints(IRequestContext requestContext, bool evictC
             }
         }
 
-        private static IEnumerable<DiscoveryEndpointBase> ProcessEndpointDiscovery(IRequestContext requestContext, bool evictCacheKey, Uri evictUri)
+        private static IEnumerable<DiscoveryEndpointBase> ProcessEndpointDiscovery(IRequestContext requestContext, bool evictCacheKey, Uri evictUri, ImmutableCredentials immutableCredentials)
         {    
             var options = requestContext.Options;
-            var immutableCredentials = (requestContext.Identity as AWSCredentials)?.GetCredentials();
 
             if (options.EndpointDiscoveryMarshaller != null && options.EndpointOperation != null && immutableCredentials != null)
             {

sdk/src/Services/CloudFormation/Custom/Model/UpdateStackRequest.Extensions.cs

@@ -33,7 +33,7 @@ public partial class UpdateStackRequest : AmazonCloudFormationRequest
         /// </summary>
         public UpdateStackRequest()
         {
-            this._notificationARNs = new AutoConstructedList<string>();
+            this._notificationARNs = AWSConfigs.InitializeCollections ? new AutoConstructedList<string>() : null;
         }
     }
 }

sdk/src/Services/DynamoDBv2/Custom/AWSConfigs.DynamoDB.cs

@@ -57,33 +57,11 @@ static AWSConfigsDynamoDB()
 
         #region DynamoDBContext TableNamePrefix
 
-
         /// <summary>
         /// Key for the DynamoDBContextTableNamePrefix property.
-        /// <seealso cref="AWSConfigsDynamoDB.DynamoDBContextTableNamePrefix"/>
         /// </summary>
         public const string DynamoDBContextTableNamePrefixKey = "AWS.DynamoDBContext.TableNamePrefix";
 
-        /// <summary>
-        /// Configures the default TableNamePrefix that the DynamoDBContext will use if
-        /// not manually configured.
-        /// Changes to this setting will only take effect in newly-constructed instances of
-        /// DynamoDBContextConfig and DynamoDBContext.
-        /// 
-        /// The setting can be configured through App.config, for example:
-        /// <code>
-        /// &lt;appSettings&gt;
-        ///   &lt;add key="AWS.DynamoDBContext.TableNamePrefix" value="Test-"/&gt;
-        /// &lt;/appSettings&gt;
-        /// </code>
-        /// </summary>
-        [Obsolete("This property is obsolete. Use DynamoDBConfig.Context.TableNamePrefix instead.")]
-        public static string DynamoDBContextTableNamePrefix
-        {
-            get { return Context.TableNamePrefix; }
-            set { Context.TableNamePrefix = value; }
-        }
-
         #endregion
 
         /// <summary>