From 34d9c0759d8c23214416739f42f0f63cbf1d470c Mon Sep 17 00:00:00 2001
From: Luca Frosini <luca.frosini@isti.cnr.it>
Date: Mon, 29 Mar 2021 14:13:57 +0200
Subject: [PATCH] Fixed null pointer exception

---
 src/main/java/org/gcube/gcat/oldutils/Validator.java | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/main/java/org/gcube/gcat/oldutils/Validator.java b/src/main/java/org/gcube/gcat/oldutils/Validator.java
index c49250d..62cddea 100644
--- a/src/main/java/org/gcube/gcat/oldutils/Validator.java
+++ b/src/main/java/org/gcube/gcat/oldutils/Validator.java
@@ -176,7 +176,7 @@ public class Validator {
 					// int upperBound = fieldsMandatoryUpperBoundMap.get(entry.getKey());
 					String maxOccurs = metadataFieldMap.get(entry.getKey()).getMaxOccurs();
 					int upperBound = Integer.MAX_VALUE;
-					if(maxOccurs.compareTo("*")==0) {
+					if(maxOccurs==null || maxOccurs.compareTo("*")==0) {
 						upperBound = Integer.MAX_VALUE;
 					}else {
 						try {