From 7d3292551b976a5b07f7e283ec95d0bc4015e8e7 Mon Sep 17 00:00:00 2001
From: Claudio Atzori <claudio.atzori@isti.cnr.it>
Date: Tue, 2 Jul 2024 15:43:11 +0200
Subject: [PATCH] ignore dates containing 'null's

---
 .../java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java   | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java
index f1221add3..7606a4d2f 100644
--- a/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java
+++ b/dhp-common/src/main/java/eu/dnetlib/dhp/schema/oaf/utils/MergeUtils.java
@@ -655,6 +655,13 @@ public class MergeUtils {
 			return d1;
 		}
 
+		if (StringUtils.contains(d1.getValue(), "null")) {
+			return d2;
+		}
+		if (StringUtils.contains(d2.getValue(), "null")) {
+			return d1;
+		}
+
 		return Stream
 			.of(d1, d2)
 			.min(