January 4th, 2008 Leave a comment Go to comments

[flash w=1016 h=839 preview=force mode=3 ]A component to visualize Log4J, JSR47 Logging Events (over Sockets) in your favorite IDE. Featurelist of this component:

  • Jump to the logmessages in the editor (Doubleclick in the table)
  • Jump to stacktrace elements in the editor (Single Click the links)
  • Filter with regular expressions
  • Filter with your editor selection on the fly
  • Show logmessages from certain classes (controlled out of the editor context menu)
  • Export/Import logmessages via XML

The code is based on the Lumbermill Log Viewer.

Beanmill has it own updatecenter under:

Beanmill has its own updatecenters under: Add To Updatecenter for 6.0 and 6.1
and for 6.5 and 6.7

(Just copy the link and click the add-Button of the Plugin-Dialog and click on Update) Download the sources here.

  1. Ryan
    January 11th, 2008 at 16:49 | #1


    I’m looking forward to using this plugin. For some reason I can’t seem how to get the file ( logfile.log4j ) file to show in beanmill. I’m opening up the logfile by the “Import Events” button -> selecting the log fil and opening it. Nothing shows.

    Am i missing something? a specific PatternLayout?

    Thanks for you time and effort with this plugin.

  2. Tom Wheeler
    January 24th, 2008 at 02:08 | #2

    Looks nice! Is the source available for this?

  3. January 24th, 2008 at 09:28 | #3

    Hey Ryan, sorry for the late answer. The import action in the plugin is only compatible with the export action of it. We are working on an import functionality for regular xml logs with the default pattern. Till we complete that you have to use the socket appender to show your logs in beanmill.

  4. January 24th, 2008 at 10:07 | #4

    Hi Tom, I put the sources online.

  5. February 14th, 2008 at 15:58 | #5


    is Beanmill able to log LogRecords sent by java.util.logging.SocketHandler?

    Because i get several Exceptions like this one invalid stream header: 3C3F786D
    at com.traxel.lumbermill.event.EventListenerServer$SocketListener.(
    at com.traxel.lumbermill.event.EventListenerServer.listen(

    i tested it with LogFeeder ( and that works. It would be great if i could grab the LogRecords direct in the ide.


  6. February 14th, 2008 at 17:11 | #6

    Hi Roland, I’ll put an example online shortly. But I really recommend the use of log4j. There are some cool features (click on a log and jump to the line in the code, use stacktraces as links to the code) in the plugin, which doesn’t work with java.util.logging.



  7. Mell
    February 22nd, 2008 at 10:34 | #7

    works fine


  8. Tim Heider
    March 26th, 2008 at 15:22 | #8

    Is this working in NB 6.1 beta yet? I can’t seem to use it.

  9. Tim Heider
    March 26th, 2008 at 15:58 | #9

    Sorry… got it working. I had only installed the log4j module and not the viewer itself.

  10. Burianek
    April 22nd, 2008 at 14:28 | #10

    Thank you for bringing lumbermill in very usable form to netbeans. Work like a charm.
    For us it was impuls to reconsider all logging implementations we used.
    After few hours of testing and consulting we finally ended using SLF4J ( SLF4J brings logging to whole new level by wraping somtimes problematic log4j and even more problematic commons-logging.

    As we need to use standard java logging in tomcat 6, SLF4J merged all log messages to one (user choice) adapter. Our choice was slf4j-jdk14 and by using own implementation of SocketHandler we managed to deliver all log messages to beanmill.

    Many thanks again for best java log viewing solution!

    Ondrej Burianek

  11. uprooter
    June 29th, 2009 at 18:04 | #11

    Can you please make it work with NB 6.7 ?

  12. June 29th, 2009 at 22:04 | #12

    We made it work with 6.7 :-) .

    Just uninstall the old beanmill plugin if you already installed it and use this update center url:

    Install Beanmill an enjoy ;-)

    A couple of small updates:

    Just look into the preferences:

    * You can enable Beanmill to show the log-messages when pressing a certain modifier key (CTRL, …)
    * render the log message as html or as raw text (or both if you want) (this feature is usefull if there is XML in your log messages)

  13. July 1st, 2009 at 13:24 | #13

    Please rate it, if you like it. :-)

  14. steve-p
    December 5th, 2009 at 15:28 | #14

    Awesome! I came across this after already trying the basic Lumbermill plugin, but this is way better. Double-clicking the table doesn’t seem to do anything, but I can live with that. Thanks for providing it!

  15. January 27th, 2010 at 07:50 | #15


    I wrote Lumbermill. Very happy to see that you’ve picked it up! Keep up the great work — what you’ve done is exactly why Open Source rules. :)


  16. Jason
    April 21st, 2010 at 16:22 | #16

    What am I missing? I run my current code and I get log4j messages in the standard netbeans output console, but nothing (logging is ‘started’ – green play button) shows up in the beanmill window? I downloaded via the update center and am using netbeans 6.8. Do I have to add some sort of appender or otherwise modify my log4j config? Does anyone have an example? Thanks!

  17. admin
    April 21st, 2010 at 16:36 | #17

    Hi Jason,

    you need a socket appender, since the lumbermill plugin catches log-messages that come via network sockets.

    just add this to your log4j.config


    best regards


  18. Jason
    April 22nd, 2010 at 00:11 | #18

    Awesome Thorsten! That totally worked. Since I was using xml, this was appender:

  19. Jason
    April 22nd, 2010 at 00:12 | #19

    <appender name=”SOCKET” class=””>
    <param name=”Port” value=”4445″/>
    <param name=”RemoteHost” value=”localhost”/>
    <param name=”LocationInfo” value=”true”/>

  20. Kai Woska
    June 21st, 2010 at 07:51 | #20

    don’t forget to restart IDE after installing and before using Beanmill. Works fine with NB6.9

  21. Chuck
    July 22nd, 2010 at 19:02 | #21

    Do you still maintain the standalone version of (Beanmill Testframe)? There are times when I bring up a standalone version instead of bringing up Netbeans (I use an older version of the Beanmill Testframe when testing outside of Netbeans). I really like the new version of the plugin. Thanks for all of you hard work in keeping this valuable plugin current!

  22. Thorsten
    July 23rd, 2010 at 07:26 | #22

    @Chuck Thanks for your comment. We don’t really maintain a standalone version. But I think it’s an idea worth to think about. Kind regards. Thorsten

    p.s.: please rate it on if you like it. We need to become a “top10-club” member again ;-)

  23. Karl Nickels
    November 9th, 2010 at 19:41 | #23

    Excellent plug-in. Any plans to add in the TRACE level for the log4j side of the plug-in? Even set to ‘All’ it doesn’t capture trace messages.

  24. Thorsten
    November 10th, 2010 at 09:29 | #24

    Hi Karl.

    Thank you for your comment. I will add a ticket to the JIRA as soon kenai/ is available again.

    Kind regards


  25. Magnus
    November 7th, 2013 at 09:47 | #25


    Thanks for developing this plugin, we’ve been using it for a few years now, it’s very useful.

    Now we have a small problem, we need to setup a develop environment on a computer that isn’t connected to the internet and we would like to have beanmill on it.

    I haven’t found this plugin as a .nbm distributable anywhere, can it be found?

  26. Thorsten
    November 7th, 2013 at 10:09 | #26

    Hi, thanks for the comment. I put a current build on my Dropbox.

    Kind regards


  27. Magnus
    November 7th, 2013 at 13:00 | #27


    Great! And that’s a very quick reply, thank you very much! :)

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