What is a JAXBWriter error?

[ladeebishop]

<-------------------------Subsonic Help Request---------------------->
So, yesterday began a problem with the play queue not auto-advancing to the next track. Someone posted this issue in another thread, to which I responded. Today, I noticed errors in the log: REST API and JAXBWriter.

Troubleshooting Steps: Log out and in or refresh the page. It works for a few songs, but eventually stops the queue. 99% of my music is mp3. I don't think it's related to transcoding.

Playback Application and version: Subsonic on the web, Chrome latest build. JamStash, same problem. (NO problems in the Subsonic app on Android)

Subsonic Version: 6.1.2 (build 09b0ab) – October 21, 2017 - If someone could point me to a QNAP package for 6.1.3, I would update.

Server Version: jetty-6.1.x, java 1.8.0_162, HSQLDB, Linux (101.3 MB / 134.0 MB)

Hardware Platform: QNAP TS251+ latest firmware


Last ten log file lines:
[2/14/18 1:37:46 PM GMT] INFO AudioScrobblerService Successfully registered now playing for song 'BRINGIN THAT HEAT (SID ROAMS)' for user summa1910 at Last.fm: Wed Feb 14 13:37:45 GMT 2018
[2/14/18 1:38:47 PM GMT] INFO PlayerDao Created player 13.
[2/14/18 1:39:46 PM GMT] INFO PlayerDao Created player 14.
[2/14/18 1:40:15 PM GMT] INFO AudioScrobblerService Successfully registered submission for song 'GET AT ME' for user summa1910 at Last.fm: Wed Feb 14 13:40:14 GMT 2018
[2/14/18 1:42:22 PM GMT] WARN RESTFilter Error in REST API: EofException
[2/14/18 1:42:22 PM GMT] ERROR JAXBWriter Failed to marshal JAXB
[2/14/18 1:42:22 PM GMT] ERROR RESTFilter Failed to write error response.
[2/14/18 1:47:45 PM GMT] INFO AudioScrobblerService Successfully registered submission for song 'AMTRACK TO BLOOMINGTON' for user summa1910 at Last.fm: Wed Feb 14 13:47:44 GMT 2018
[2/14/18 1:48:54 PM GMT] INFO AudioScrobblerService Successfully registered submission for song 'CRY OUT' for user summa1910 at Last.fm: Wed Feb 14 13:48:54 GMT 2018
[2/14/18 1:49:02 PM GMT] WARN RESTFilter Error in REST API: timeout
[2/14/18 1:49:02 PM GMT] ERROR JAXBWriter Failed to marshal JAXB
[2/14/18 1:49:02 PM GMT] ERROR RESTFilter Failed to write error response.
[2/14/18 1:49:39 PM GMT] WARN RESTFilter Error in REST API: EofException
[2/14/18 1:49:39 PM GMT] ERROR JAXBWriter Failed to marshal JAXB
[2/14/18 1:49:39 PM GMT] ERROR RESTFilter Failed to write error response.
<-------------------------Subsonic Help Request---------------------->

[ladeebishop]

Found the 6.1.3 package: https://www.qnapclub.eu/en/qpkg/310

https://forum.qnap.com/viewtopic.php?f= ... e7dc93eb8e

Update: I've upgraded to 6.1.3 and rebooted the NAS. Settings and library were retained. Still no auto-advance in the play queue. No JAXBWriter errors yet.