From bd8f8c3f2274c54d25568e906ab2dd0dbb87f076 Mon Sep 17 00:00:00 2001
From: Xianghao Wang <u7321615@anu.edu.au>
Date: Wed, 26 Oct 2022 20:55:57 +1100
Subject: [PATCH] Update TemporalAccessorPicker.java: return null if the date
 is not in format

---
 .../org/jabref/gui/util/component/TemporalAccessorPicker.java  | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/jabref/gui/util/component/TemporalAccessorPicker.java b/src/main/java/org/jabref/gui/util/component/TemporalAccessorPicker.java
index f2aecc17947..4d59e81b389 100644
--- a/src/main/java/org/jabref/gui/util/component/TemporalAccessorPicker.java
+++ b/src/main/java/org/jabref/gui/util/component/TemporalAccessorPicker.java
@@ -76,6 +76,7 @@ private static LocalDate getDate(TemporalAccessor temporalAccessor) {
 
     private static LocalDate getLocalDate(TemporalAccessor dateTime) {
         // Try to get as much information from the temporal accessor
+        if (dateTime == null) return null;
         LocalDate date = dateTime.query(TemporalQueries.localDate());
         if (date != null) {
             return date;
@@ -139,7 +140,7 @@ public LocalDate fromString(String value) {
 
             TemporalAccessor dateTime = getStringConverter().fromString(value);
             temporalAccessorValue.set(dateTime);
-            return getLocalDate(dateTime);
+            return dateTime == null ? null : getLocalDate(dateTime);
         }
     }
 }