Archive for April, 2008
Ubuntu 8.0.4 LTS is out, and it rocks!
Thursday, April 24th, 2008
I just upgraded to the latest 8.0.4 ubuntu release and i am more than satisfied.
In fact, i believe that the improvements (performance, network support, display and gfx card support, encryption and many more) are just about the same huge step forward that 7.10 was compared to the release 6.
After the automatic update, i had firefox 3 (lovely from the start), improved SSH authentication support (better protection of private key etc.) and finally, my wxga display AND laptop monitor configured perfectly even with my not-so standards conform internal GFX card (Intel 950m, in fact).
What else is there at the first glimpse? Improved language support and a nice little search engine (Conceptual rip of from apple i must admit, but well done!) for all kinds of items on your hard disk, and a really sweet new background image. For the artist in the nerd.
Yes, i’m charmed. I recommend it! Especially since it’s a long term support release…
Read more on ubuntu 8.0.4 in this feature tour.
No CommentsOutOfMemoryError using findbugs & continuum – and how to fix it.
Monday, April 21st, 2008
Posted in: continuum, java, maven 2.
When using findbugs through the findbugs maven plugin, one is very likely to see the maven build in continuum fail with an OutOfMemory-Exception like this:
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ContinuumBuildCancelledException in continuum
Monday, April 21st, 2008
Posted in: continuum, java, maven 2.
Users of continuum might see their builds fail with the following exception when running a little more voluminous build:
org.apache.maven.continuum.execution.ContinuumBuildCancelledException: The build was cancelled
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Configuring custom username for maven’s scm with subversion and ssh
Monday, April 21st, 2008
Posted in: System engineering, continuum, java, maven 2, subversion.
I just stumbled over a nice little problem: When using the maven 2 changelog plugin, it automatically uses the configured <scm> settings and attempts to fetch the change history with them.
Unfortunately, such a setting usually does not contain a username, since this has to be provided by the actual team member connecting to version control.
Neither did i have any intention to configure a placeholder into the scm section, forcing the developers to mess with the maven settings.xml in order to provide their own username.
Luckily, after searching a while, i found a proper solution.
SSH allows an optional per-host specific username setting to be placed in a file called “config” located in the user’s .ssh directory, for example
File: ~/.ssh/config
Host my.host.name
User myusername
Thanks to Chad Humphries for posting the Solution on programming is hard.
It really wasn’t…
OutOfMemoryException (PermGenSpace) with Eclipse JEE
Sunday, April 13th, 2008
Posted in: J2EE, eclipse, java.
The Eclipse JEE distribution Europa Winter appears to have a memory issue with the default JVM memory settings, causing an OutOfMemoryException of the PermGenSpace which makes the IDE hang up and / or exit.
This issue appears to be subject of several bug reports and discussions (see for example this discussion at EclipseZone) .
In general, the fix or workaround for the problem is assigning more memory to the PermGenSpace while increasing the amount of heapspace.
The following entries in the eclipse.ini (located in the eclipse installation root folder) did it for me:
-Xms40m
-Xmx512m
-XX:MaxPermSize=96m
Not that this workaround will only work with sun’s Java distribution (which is the most common), but not with IBM’s, since the latter does not support setting the maxPermSize with -XX:MaxPermSize.
No CommentsLatex, PDF-Erzeugung und schöne Formeln mit Kile & Ubuntu
Sunday, April 6th, 2008
Posted in: Uncategorized, latex, ubuntu.
Wer seine Arbeiten mit Latex verfassen möchte wird oft von der schier endlosen Masse von Paketen, Versionen, Tools und Konfigurationen erschlagen, die mit dieser an sich recht einfachen Sprache einhergehen. Ich kam neulich wieder in dem Umstand einen Artikel mit Latex zu verfassen, und habe mir zu diesem Zweck Tools und Pakete unter Ubuntu 7.10 (Gutsy Gibbon) herausgesucht, mit denen ich insgesamt mehr als zufrieden war. Eine kurze Beschreibung und Installationsanleitung.
Update: Alle hier beschriebenen Pakete sind auch in Ubuntu 8.04 unterstützt und funktionieren dort auf die gleiche Weise.
Read the rest of “Latex, PDF-Erzeugung und schöne Formeln mit Kile & Ubuntu”
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