Removed boolean field complete in payInvoice method

Author: ppatidar2021

src/main/java/com/bitpay/sdk/Client.java

@@ -468,16 +468,12 @@ public Invoice updateInvoice(String invoiceId, String buyerSms, String smsCode,
      * @throws BitPayException        BitPayException class
      * @throws InvoiceUpdateException InvoiceUpdateException class
      */
-    public Invoice payInvoice(String invoiceId, String status, Boolean complete) throws BitPayException, InvoiceUpdateException {
+    public Invoice payInvoice(String invoiceId, String status) throws BitPayException, InvoiceUpdateException {
         final Map<String, Object> params = new HashMap<>();
         params.put("token", this.getAccessToken(Facade.Merchant));
-        params.put("status", status);
-        if (complete == null) {
-            throw new InvoiceUpdateException(null, "It is required to define the whether the invoice will be set to \"complete\" or \"confirmed\".");
+        if (status != null) {
+        	params.put("status", status);
         }
-
-        params.put("complete", complete);
-
         ObjectMapper mapper = new ObjectMapper();
         String json;
         Invoice invoice;

src/test/java/test/BitPayTestMerchant.java

@@ -311,14 +311,14 @@ public void testShouldCreateAndPayInvoice() {
         Invoice invoice = new Invoice(1.0, "USD");
         try {
             basicInvoice = bitpay.createInvoice(invoice);
-            paidInvoice = bitpay.payInvoice(basicInvoice.getId(), "confirmed", true);
+            paidInvoice = bitpay.payInvoice(basicInvoice.getId(), "confirmed");
         } catch (Exception e) {
             e.printStackTrace();
             fail(e.getMessage());
         }
         assertNotNull(basicInvoice.getId());
         assertNotNull(paidInvoice.getId());
-        assertEquals(paidInvoice.getStatus(), InvoiceStatus.Complete);
+        assertEquals(paidInvoice.getStatus(), InvoiceStatus.Confirmed);
     }
 
     @Test