Swap HMAC Validation method parameters

src/main/java/com/adyen/util/HMACValidator.java

@@ -73,8 +73,9 @@ public String calculateHMAC(NotificationRequestItem notificationRequestItem, Str
         return calculateHMAC(getDataToSign(notificationRequestItem), key);
     }
 
-    // Calculate HMAC for BankingWebhooks and ManagementWebhooks (Generic webhooks)
-    public boolean validateHMAC(String hmacKey, String hmacSignature, String payload) throws SignatureException {
+    //Calculate HMAC for BankingWebhooks and ManagementWebhooks (Generic webhooks)
+    //First parameter is hmacSignature which is get from webhook and the second hmackey which is configured
+    public boolean validateHMAC(String hmacSignature, String hmacKey, String payload) throws SignatureException {
         String calculatedSign = calculateHMAC(payload, hmacSignature);
         final byte [] expectedSign = calculatedSign.getBytes(StandardCharsets.UTF_8);
         final byte[] merchantSign =  hmacKey.getBytes(StandardCharsets.UTF_8);

src/test/java/com/adyen/WebhookTest.java

@@ -271,7 +271,7 @@ public void testBankingWebhookHmacValidator() throws SignatureException {
         String signKey = "D7DD5BA6146493707BF0BE7496F6404EC7A63616B7158EC927B9F54BB436765F";
         String hmacKey = "9Qz9S/0xpar1klkniKdshxpAhRKbiSAewPpWoxKefQA=";
         HMACValidator hmacValidator = new HMACValidator();
-        boolean response = hmacValidator.validateHMAC(hmacKey, signKey, notification);
+        boolean response = hmacValidator.validateHMAC(signKey,hmacKey,notification);
         Assert.assertTrue(response);
     }