NPE on XQUERY update document

[algrw]

What is the problem

We have a java application using eXist-db 2.2 as a database (eXist-db is installed as a standalone server). We use queries to retrieve or update the XML documents stored in the database.

We are trying to use eXist-db 4.2 but, when I try to update a document to add new nodes with "update insert following/preceding/into", I got a null pointer exception in org.exist.xquery.update.Modification class and the update isn't done.

The same query works with eXist-db 2.2.
I tested it with eXist-db 5.0.0-RC1 but I got the same error.

What did you expect

Not a NPE but update the document

Describe how to reproduce or add a test

Attached are the query and the XML file.

Th XML can be uploaded in a collection (/db/AGD) and the query update.xqy can be run with eXide.

Context information

eXist-db version 4.2.0 build 201806060100 - Git commit a0dfbd0
Java version 1.8.0_121
Operating system Windows Server 2008 R2
64 bit

eXist-db is installed as a standalone server, from the eXist-db.org setup jar , with no change to the conf.xml file (apart for the cache size).

Attached are also the eXist-db logs

logs.zip
resources.zip

[duncdrum]

duplicate of #1761 ? 4.2.1 will be released very soon, can you please try again, and let us know how it went in the other ticket. thx