From b9c6fb995c9e6a5ebcf1dbff3fa1eab73bc1cffd Mon Sep 17 00:00:00 2001
From: Luca Frosini <luca.frosini@isti.cnr.it>
Date: Thu, 19 Dec 2019 16:21:38 +0100
Subject: [PATCH] Catching null object

---
 src/main/java/org/gcube/gcat/workspace/CatalogueMetadata.java | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/gcube/gcat/workspace/CatalogueMetadata.java b/src/main/java/org/gcube/gcat/workspace/CatalogueMetadata.java
index f881dd4..cbbdfe8 100644
--- a/src/main/java/org/gcube/gcat/workspace/CatalogueMetadata.java
+++ b/src/main/java/org/gcube/gcat/workspace/CatalogueMetadata.java
@@ -25,7 +25,8 @@ public class CatalogueMetadata implements MetadataMatcher {
 	@Override
 	public boolean check(Metadata metadata) {
 		Map<String,Object> map = metadata.getMap();
-		if(map.get(CATALOGUE_ITEM_ID).toString().compareTo(itemID) == 0) {
+		Object obj = map.get(CATALOGUE_ITEM_ID);
+		if(obj!=null && obj.toString().compareTo(itemID) == 0) {
 			return true;
 		}
 		return false;