From b50bb39743b17dabd0f237f914a51b8d0fe0b984 Mon Sep 17 00:00:00 2001
From: langfr <frank.langelage@outlook.de>
Date: Thu, 8 Aug 2024 12:20:53 +0100
Subject: [PATCH] Avoid NullPointerException if dueDate is not set.

---
 .../org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java     | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
index 345fed91..a588f13b 100644
--- a/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
+++ b/library/src/main/java/org/mustangproject/ZUGFeRD/ZUGFeRD2PullProvider.java
@@ -318,8 +318,9 @@ public class ZUGFeRD2PullProvider implements IXMLProvider {
 				paymentTermsDescription += discount.getAsXRechnung();
 			}
 		} else if ((paymentTermsDescription == null) && (trans.getDocumentCode() != DocumentCodeTypeConstants.CORRECTEDINVOICE) && (trans.getDocumentCode() != DocumentCodeTypeConstants.CREDITNOTE)) {
-			paymentTermsDescription = "Please remit until " + germanDateFormat.format(trans.getDueDate());
-
+			if ( trans.getDueDate() != null ) {
+				paymentTermsDescription = "Please remit until " + germanDateFormat.format(trans.getDueDate());
+			}
 		}