Made the breaking change warnings about Get-AzAccessToken not appea…

…r when `-AsSecureString` is used. (#26929)

src/Accounts/Accounts/ChangeLog.md

@@ -19,6 +19,7 @@
 -->
 
 ## Upcoming Release
+* Made the breaking change warnings about `Get-AzAccessToken` not appear when `-AsSecureString` is used.
 * Fixed an issue that cmdlets may report warnings of "KeyNotFoundException". #26624
 * Fixed an issue that the `-AppliesTo` parameter of `Update-AzConfig` does not work as expected.
 * Upgraded Azure.Core to 1.44.1 and Azure.Identity to 1.13.0.

src/Accounts/Accounts/Token/GetAzureRmAccessToken.cs

@@ -18,18 +18,16 @@
 using Microsoft.Azure.Commands.ResourceManager.Common;
 using Microsoft.Azure.Commands.ResourceManager.Common.ArgumentCompleters;
 using Microsoft.Azure.PowerShell.Authenticators;
-using Microsoft.WindowsAzure.Commands.Common.CustomAttributes;
 using Microsoft.WindowsAzure.Commands.Utilities.Common;
 
 using System;
 using System.Linq;
 using System.Management.Automation;
-using System.Security;
 using System.Text.Json;
 
 namespace Microsoft.Azure.Commands.Profile
 {
-    [GenericBreakingChangeWithVersion("The Token property of the output type will be changed from String to SecureString. Add the [-AsSecureString] switch to avoid the impact of this upcoming breaking change.", "14.0.0", "4.0.0")]
+    [SecureStringBreakingChange("The Token property of the output type will be changed from String to SecureString. Add the [-AsSecureString] switch to avoid the impact of this upcoming breaking change.", "14.0.0", "5.0.0")]
     [Cmdlet(VerbsCommon.Get, AzureRMConstants.AzureRMPrefix + "AccessToken", DefaultParameterSetName = KnownResourceNameParameterSet)]
     [OutputType(typeof(PSAccessToken), typeof(PSSecureAccessToken))]
     public class GetAzureRmAccessTokenCommand : AzureRMCmdlet

src/Accounts/Accounts/Utilities/SecureStringBreakingChangeAttribute.cs

@@ -0,0 +1,35 @@
+// ----------------------------------------------------------------------------------
+//
+// Copyright Microsoft Corporation
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://www.apache.org/licenses/LICENSE-2.0
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+// ----------------------------------------------------------------------------------
+
+using Microsoft.WindowsAzure.Commands.Common.CustomAttributes;
+using System.Management.Automation;
+
+namespace Microsoft.Azure.Commands.Profile
+{
+    /// <summary>
+    /// Attribute to mark a breaking change that is specific for SecureString.
+    /// Only applies to cmdlets that do not already have the -AsSecureString parameter.
+    /// </summary>
+    internal class SecureStringBreakingChangeAttribute : GenericBreakingChangeWithVersionAttribute
+    {
+        public SecureStringBreakingChangeAttribute(string changeDescription, string changeVersion, string breakingChangeVersion) : base(changeDescription, changeVersion, breakingChangeVersion)
+        {
+        }
+
+        public override bool IsApplicableToInvocation(InvocationInfo invocation)
+        {
+            return !invocation.BoundParameters.ContainsKey(nameof(GetAzureRmAccessTokenCommand.AsSecureString));
+        }
+    }
+}