From eea8e87b25a1664df56b8b80cfe4febb80e8abd8 Mon Sep 17 00:00:00 2001
From: Sandro La Bruzzo <sandro.labruzzo@isti.cnr.it>
Date: Thu, 6 Aug 2020 10:27:05 +0200
Subject: [PATCH] fixed NPE

---
 .../src/main/java/eu/dnetlib/pace/util/MapDocumentUtil.java     | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/dnet-pace-core/src/main/java/eu/dnetlib/pace/util/MapDocumentUtil.java b/dnet-pace-core/src/main/java/eu/dnetlib/pace/util/MapDocumentUtil.java
index 2f04767..2683c7b 100644
--- a/dnet-pace-core/src/main/java/eu/dnetlib/pace/util/MapDocumentUtil.java
+++ b/dnet-pace-core/src/main/java/eu/dnetlib/pace/util/MapDocumentUtil.java
@@ -105,6 +105,8 @@ public class MapDocumentUtil {
 
 
     public static String truncateValue(String value, int length) {
+        if (value == null)
+            return "";
 
         if (length == -1 || length > value.length())
             return value;