20130706 (Saturday, 06 July 2013)

Budget-Einträge eingeben:

• die erste Zeile hatte unlogischerweise einen Up-Button und die letzte einen Down-Button. Jetzt nicht mehr.

• Statt der Wörter “Up” und “Down” sieht man jetzt zwei grüne Pfeile.

• in “Verpflichtungen” und “Vermögen” fehlten die move_buttons

How to see the java console of an applet

It took me some time to figure out that jconsole is not the right thing to see the java console output of an applet running in a browser. The following thread led me to enlightment: IcedTea - how to show the applet console..?

So the simple answer is one of the following:

$ tail -f ~/.icedtea/log/java.stderr
$ tail -f ~/.icedtea/log/java.stdout
$ tail -f ~/.icedtea/log/java.stderr ~/.icedtea/log/java.stdout
$ multitail ~/.icedtea/log/java.stderr ~/.icedtea/log/java.stdout

Allowing DavLink applet to store preferences

Now that I can finally read the Java console, I can start with some real problem: DavLink obviously doesn’t yet work when it is being used from a Linux client. Let’s get that running.

The console says:

WARNING: Couldn't flush system prefs: java.util.prefs.BackingStoreException: /etc/.java/.systemPrefs/lino create failed.

Reaction:

$ sudo mkdir /etc/.java/.systemPrefs/lino

Now it says:

WARNING: Couldn't flush system prefs: java.util.prefs.BackingStoreException: java.io.FileNotFoundException: /etc/.java/.systemPrefs/lino/prefs.tmp (Permission denied)

Reaction:

$ sudo chgrp www-data /etc/.java/.systemPrefs/lino
$ sudo chmod g+ws /etc/.java/.systemPrefs/lino

Now that part works. To see what the applet wrote to your preferences:

$ less /etc/.java/.systemPrefs/lino/davlink/prefs.xml

Next problem is (when I try to open an URL ending with .odt) that it still says “java.lang.RuntimeException: No launcher defined for extension ‘odt’”. Theoretically it should find libreoffice automatically.