From 87d7a6a27f1e7d851582ba348e265b18dd87ced6 Mon Sep 17 00:00:00 2001
From: Vito <vito.albano@alfresco.com>
Date: Tue, 3 Jul 2018 12:31:29 +0100
Subject: [PATCH] [ADF-3301] - added a check when handler is null (#3554)

---
 .../document-list/components/document-list.component.ts         | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/content-services/document-list/components/document-list.component.ts b/lib/content-services/document-list/components/document-list.component.ts
index 3dc87a97d0..078aca9b5d 100644
--- a/lib/content-services/document-list/components/document-list.component.ts
+++ b/lib/content-services/document-list/components/document-list.component.ts
@@ -562,7 +562,7 @@ export class DocumentListComponent implements OnInit, OnChanges, OnDestroy, Afte
                 handlerSub = Observable.of(true);
             }
 
-            if (typeof action.execute === 'function') {
+            if (typeof action.execute === 'function' && handlerSub) {
                 handlerSub.subscribe(() => {
                     action.execute(node);
                 });