From a0884e1f21cc68cac07f17fdf30fd486622a7dad Mon Sep 17 00:00:00 2001
From: MK13 <marius@kleberonline.de>
Date: Mon, 11 Mar 2019 20:32:43 +0100
Subject: [PATCH] Fix NPE in RecurringTransactionController.createTransaction

As the amount parameter is optional it may be null - use the appropriate
Optional method ofNullable()
---
 .../de/financer/controller/RecurringTransactionController.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/de/financer/controller/RecurringTransactionController.java b/src/main/java/de/financer/controller/RecurringTransactionController.java
index 792ea56..62feb32 100644
--- a/src/main/java/de/financer/controller/RecurringTransactionController.java
+++ b/src/main/java/de/financer/controller/RecurringTransactionController.java
@@ -45,6 +45,7 @@ public class RecurringTransactionController {
 
     @RequestMapping("createTransaction")
     public ResponseEntity createTransaction(String recurringTransactionId, Long amount) {
-        return this.recurringTransactionService.createTransaction(recurringTransactionId, Optional.of(amount)).toResponseEntity();
+        return this.recurringTransactionService.createTransaction(recurringTransactionId, Optional.ofNullable(amount))
+                                               .toResponseEntity();
     }
 }