add test

Author: David Hasani

packages/core/src/amazonqGumby/chat/controller/messenger/messenger.ts

@@ -492,7 +492,7 @@ export class Messenger {
                 break
             case 'invalid-from-to-jdk':
                 // TO-DO: get this String reviewed
-                message = 'I cannot transform a project from Java 21 to Java 17.'
+                message = CodeWhispererConstants.invalidFromToJdkChatMessage
                 break
         }
 

packages/core/src/codewhisperer/client/user-service-2.json

@@ -2627,7 +2627,7 @@
         },
         "TransformationLanguage": {
             "type": "string",
-            "enum": ["JAVA_8", "JAVA_11", "JAVA_17", "C_SHARP", "COBOL", "PL_I", "JCL"]
+            "enum": ["JAVA_8", "JAVA_11", "JAVA_17", "JAVA_21", "C_SHARP", "COBOL", "PL_I", "JCL"]
         },
         "TransformationLanguages": {
             "type": "list",

packages/core/src/codewhisperer/models/constants.ts

@@ -596,6 +596,8 @@ export const invalidMetadataFileErrorParsing =
 export const invalidMetadataFileNoSctFile =
     "An .sct file is required for transformation. Make sure that you've uploaded the .zip file you retrieved from your schema conversion in AWS DMS."
 
+export const invalidFromToJdkChatMessage = 'I cannot transform a project from Java 21 to Java 17.'
+
 export const sqlMetadataFileReceived =
     'I found the following source database, target database, and host based on the schema conversion metadata you provided:'