[syslog-ng] "Error initializing message pipeline; plugin name='java', location='#buffer:2:3'" after update to syslog-ng 3.12

[Roegels Ruben]

Hi there,

I'm using the OSE of syslog-ng for some weeks.
Today I updated syslog-ng to 3.13 and afterwards I started seeing

-- Unit syslog-ng.service has begun starting up.
Dez 13 11:53:59 syslog syslog-ng[23803]: [2017-12-13T11:53:59.572246] Error initializing message pipeline; plugin name='java', location='#buffer:2:3'
Dez 13 11:53:59 syslog systemd[1]: syslog-ng.service: Main process exited, code=exited, status=2/INVALIDARGUMENT
Dez 13 11:53:59 syslog systemd[1]: Failed to start System Logger Daemon.
-- Subject: Unit syslog-ng.service has failed
-- Defined-By: systemd-13T11:53:59.572246] Error initializing message pipeline; plugin name='java', location='#buffer:2:3'

In "journalctl -xe"

If I disable the elasticsearch destination syslog-ng starts up fine.

I don't know what to look at as the error message is not very meaningful to me.
Did I miss some configuration format changes regarding the "elasticsearch2" destination?

The header of my "/etc/syslog-ng/syslog-ng.conf":

=== Snip ===
@version: 3.13
@module mod-java
@include "scl.conf"
=== Snip ===

My elasticsearch config for syslog-ng:
https://pastebin.com/g6UB3gBi

"ls -l {/usr/share/elasticsearch/lib/,/usr/lib/syslog-ng/3.13/java-modules/}"
https://pastebin.com/nqYAVhHL

"cat /etc/systemd/system/multi-user.target.wants/syslog-ng.service"
https://pastebin.com/UzfQXvZL

I really appreciate any help.
Thank you!

Best regards,
Ruben
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netsys IT GmbH
Ruben Roegels

Nelly-Sachs-Str. 4
79111 Freiburg

Tel. +49 761 888 691 0
Fax  +49 761 888 691 10

<http://www.netsys-it.de>
Ruben.Roegels at netsys-it.de
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Amtsgericht Freiburg HRB 5752 Geschaeftsfuehrer: Juergen Dufner

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