From ef115930682635ff4e478eedfdf4b555d656ab53 Mon Sep 17 00:00:00 2001
From: Claudio Atzori <claudio.atzori@isti.cnr.it>
Date: Thu, 28 May 2020 13:50:44 +0200
Subject: [PATCH] JoinedEntity.links defined as empty list by default

---
 .../java/eu/dnetlib/dhp/oa/provision/model/JoinedEntity.java   | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/JoinedEntity.java b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/JoinedEntity.java
index e29ec9d192..7681fa76f5 100644
--- a/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/JoinedEntity.java
+++ b/dhp-workflows/dhp-graph-provision/src/main/java/eu/dnetlib/dhp/oa/provision/model/JoinedEntity.java
@@ -2,13 +2,14 @@
 package eu.dnetlib.dhp.oa.provision.model;
 
 import java.io.Serializable;
+import java.util.ArrayList;
 import java.util.List;
 
 public class JoinedEntity implements Serializable {
 
 	private TypedRow entity;
 
-	private List<Tuple2> links;
+	private List<Tuple2> links = new ArrayList<>();
 
 	public JoinedEntity() {
 	}