Use getter for _paymentProcessor

CRM/Core/Payment/MJWIPNTrait.php

@@ -394,7 +394,7 @@ trait CRM_Core_Payment_MJWIPNTrait {
         }
       }
       $paymentParams['contribution_id'] = $contribution['id'];
-      $paymentParams['payment_processor_id'] = $this->_paymentProcessor->getID();
+      $paymentParams['payment_processor_id'] = $this->getPaymentProcessor()->getID();
       $paymentParams['is_send_contribution_notification'] = $this->getSendEmailReceipt($paymentParams['contribution_id']);
       $paymentParams['skipCleanMoney'] = TRUE;
       civicrm_api3('Mjwpayment', 'create_payment', $paymentParams);
@@ -461,7 +461,7 @@ trait CRM_Core_Payment_MJWIPNTrait {
     }
     $paymentParams['is_send_contribution_notification'] = $this->getSendEmailReceipt($paymentParams['contribution_id']);
     $paymentParams['skipCleanMoney'] = TRUE;
-    $paymentParams['payment_processor_id'] = $this->_paymentProcessor->getID();
+    $paymentParams['payment_processor_id'] = $this->getPaymentProcessor()->getID();
     civicrm_api3('Mjwpayment', 'create_payment', $paymentParams);
   }
 
@@ -567,7 +567,7 @@ trait CRM_Core_Payment_MJWIPNTrait {
    * @throws \Civi\Payment\Exception\PaymentProcessorException
    */
   protected function exception($message) {
-    $label = method_exists($this->_paymentProcessor, 'getPaymentProcessorLabel') ? $this->_paymentProcessor->getPaymentProcessorLabel() : __CLASS__;
+    $label = method_exists($this->getPaymentProcessor(), 'getPaymentProcessorLabel') ? $this->getPaymentProcessor()->getPaymentProcessorLabel() : __CLASS__;
     $errorMessage = $label . ' Exception: Event: ' . $this->eventType . ' Error: ' . $message;
     Civi::log()->error($errorMessage);
     if ($this->exitOnException) {

mjwshared.php

@@ -107,7 +107,7 @@ function mjwshared_symfony_civicrm_coreResourceList($event, $hook) {
     // We want this library loaded early. Weights are negative earlier, positive later (opposite to symfony).
     // CiviCRM "earliest" is -9999 we'll go with -2000 to load after CiviCRM core but before anything else.
     \Civi::resources()->addScriptFile(
-      E::LONG_NAME, 
+      E::LONG_NAME,
       'js/crm.payment.js',
       -2000,
       $event->region