Java.lang.NullPointerException - CatalogJS - isWishlistEnabled() - Warning Message - Support and Troubleshooting

Java.lang.NullPointerException - CatalogJS - isWishlistEnabled() - Warning Message Issue  Symptoms The following warning message appears under System Log > Warnings after a London Patch 6 upgrade:

019-02-28 10:59:23 (594) Default-thread-1 304AFDD3DBB327003C3A54F9489619CE txid=8186221bdb37 [0:00:00.013] getRealForm 2019-02-28 10:59:23 (612) Default-thread-1 304AFDD3DBB327003C3A54F9489619CE txid=8186221bdb37 WARNING *** WARNING *** Evaluator: java.lang.NullPointerException Caused by error in sys_script_include.c22bf956c3330200d68d3b0ac3d3aeb1.script at line 63 com.glideapp.servicecatalog.scoped.api.CatalogJS.jsFunction_isWishlistEnabled(CatalogJS.java:181) sun.reflect.GeneratedMethodAccessor1654.invoke(Unknown Source) The message corresponds to the script include GlobalServiceCatalogUtil where line 63 is:

isWishListEnabled : function(catalogId) { //Checks if an item in a catalog can be added to wish list return new sn_sc.Catalog(catalogId).isWishlistEnabled(); }, CatalogJS - isWishlistEnabled() is documented here: https://docs.servicenow.com/csh?topicname=CatalogJSScopedAPI.html&version=latest

Cause The wish list feature for the catalog record that produced the error is not enabled.

Resolution To enable wish list feature for catalog end users, select the check box for Enable Wish List in the catalog record.

The wish list feature does not function if the property glide.ui.doctype is set to false.