I have had a similar issue migrating from a much older GeoServer version to
a new one and my solution was to NOT migrate the data folder in it's
entirety but instead to migrate only some components.  I won't pretend to
understand the underlying issue but it fixed it for me.  The components I
migrated resulted in me having all of the important stuff in the new
GeoServer version and a running GeoServer. I migrated the following in the
order specified:

   - workspaces
   - security
   - styles

If you want to try this here are the steps:

   1.  shut down tomcat
   2. go to your freshly installed data folder
   (....your_tomcat/webapps/geoserver/data)
   3. mv -rf fullpath_to_your_backup/workspaces/* workspaces/.
   4. mv -rf fullpath_to_your_backup/security/*  security/.
   5. mv -rf fullpath_to_your_backup/styles/*   styles/.
   6. cd ..
   7. chown -R tomcat:tomcat data
   8. restart tomcat

Hope this helps,
Vera

On Wed, Jun 5, 2019 at 9:03 AM Uwe Seher <uwe.se...@gmail.com> wrote:

> Hello group!
> At the moment i have a hard problem. After a restart of my running tomcat8
> the geoserver-application (2.11) did not start up. some other applications
> (geonetwork, jasper) run as good as before. After that i did an update to
> 2.15.1, whicht starts up with a clean data-directory. When i copy my old
> data-dir in the new installation, it does not start up again.
>
> in the catalina-log are the following lines, which i think descripbe the
> error, but i am not able to understand what they want to tell me. Somewhere
> else i found a reference to the encrytion used (
> http://osgeo-org.1560.x6.nabble.com/GeoServer-doesn-t-Start-up-td5268309.html),
> but i wanted to ask  someone before i do something weird. The whole logfile
> can be delievered also.
>
> So please, can someone tell me, what happened here?
>
> Thanks in advance
>
> Uwe Seher
>
> 05-Jun-2019 16:21:35.844 SEVERE [localhost-startStop-1]
> org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks
> The web application [geoserver] created a ThreadLocal with key of type
> [java.lang.ThreadLocal] (value [j
> ava.lang.ThreadLocal@437d4b79]) and a value of type
> [org.springframework.security.core.context.SecurityContextImpl] (value
> [org.springframework.security.core.context.SecurityContextImpl@ffffffff:
> Null authentication]) but failed to remov
> e it when the web application was stopped. Threads are going to be renewed
> over time to try and avoid a probable memory leak.
>
> 05-Jun-2019 16:21:35.858 WARNING [localhost-startStop-1]
> java.util.prefs.FileSystemPreferences$1.run Couldn't create user
> preferences directory. User preferences are unusable.
>
> 05-Jun-2019 16:21:35.859 WARNING [localhost-startStop-1]
> java.util.prefs.FileSystemPreferences$1.run java.io.IOException: No such
> file or directory
>
> 05-Jun-2019 16:21:35.875 SEVERE [localhost-startStop-1]
> org.apache.catalina.loader.WebappClassLoaderBase.checkThreadLocalMapForLeaks
> The web application [geoserver] created a ThreadLocal with key of type
> [java.lang.ThreadLocal] (value [j
> ava.lang.ThreadLocal@286a76ba]) and a value of type
> [org.geotools.referencing.operation.projection.TransverseMercator.Provider]
> (value [PROJECTION["Transverse_Mercator"]]) but failed to remove it when
> the web application was stopped. Thr
> eads are going to be renewed over time to try and avoid a probable memory
> leak.
>
> 05-Jun-2019 16:21:35.916 INFO [Finalizer]
> org.apache.catalina.loader.WebappClassLoaderBase.checkStateForResourceLoading
> Illegal access: this web application instance has been stopped already.
> Could not load [org.geotools.metadata.i18n.Lo
> ggings]. The following stack trace is thrown for debugging purposes as
> well as to attempt to terminate the thread which caused the illegal access.
> _______________________________________________
> Geoserver-users mailing list
>
> Please make sure you read the following two resources before posting to
> this list:
> - Earning your support instead of buying it, but Ian Turton:
> http://www.ianturton.com/talks/foss4g.html#/
> - The GeoServer user list posting guidelines:
> http://geoserver.org/comm/userlist-guidelines.html
>
> If you want to request a feature or an improvement, also see this:
> https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer
>
>
> Geoserver-users@lists.sourceforge.net
> https://lists.sourceforge.net/lists/listinfo/geoserver-users
>
_______________________________________________
Geoserver-users mailing list

Please make sure you read the following two resources before posting to this 
list:
- Earning your support instead of buying it, but Ian Turton: 
http://www.ianturton.com/talks/foss4g.html#/
- The GeoServer user list posting guidelines: 
http://geoserver.org/comm/userlist-guidelines.html

If you want to request a feature or an improvement, also see this: 
https://github.com/geoserver/geoserver/wiki/Successfully-requesting-and-integrating-new-features-and-improvements-in-GeoServer


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