Well, finally I am back online with my blog and website. I moved to another apartment and my server is located in my apartment. No DSL, no server :-(
Check out this site http://www.thefreecountry.com/webmaster/htmleditors.shtml#wysiwyg if you are in need of a free WYSIWYG HTML Editor.
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Wednesday, April 02, 2008
Friday, November 16, 2007
Changing HTTP Listener Port on Oracle Express 10g
The oracle installer does not give you the chance to change the port of the HTTP Listener. I installed my Oracle 10g Express Edition under Windows and my Tomcat Servlet Container already uses port 8080.
So I decided to change the port of the Oracle HTTP listener doing the following with SQLPlus:
So I decided to change the port of the Oracle HTTP listener doing the following with SQLPlus:
C:\>sqlplus / as sysdba SQL*Plus: Release 10.2.0.1.0 - Production on Sat Sep 10 18:49:14 2006 Copyright (c) 1982, 2005, Oracle. All rights reserved. Connected to: Oracle Database 10g Express Edition Release 10.2.0.1.0 - Production SQL> exec dbms_xdb.sethttpport(8081); PL/SQL procedure successfully completed. SQL>
Thursday, November 15, 2007
Professional looking Java Swing Look and Feel
Digging around for an improved Look and Feel of one of my Java Swing applications I stumbled across the Substance Look And Feel project on java.net.
These skins and themes are awesome. I have never seen a better looking UI like this. Go and check it out. You will be impressed!
These skins and themes are awesome. I have never seen a better looking UI like this. Go and check it out. You will be impressed!
Sunday, November 11, 2007
JBoss 4.2.x and JSF applications
I upgraded from JBoss 4.0.4.GA to 4.2.2.GA and was not able to successfully deploy a JSF application into the container.
Various error messages were thrown by the container, one of it telling to have a closer look into the JBoss Wiki to determine the cause of deployment failure when using JSF application.
The problem was, that my application is bundled the MyFaces API and Impl core packages but JBoss uses the java.net JSF implementation.
If you still would like to use the MyFaces implementation you have to add the following lines to your web.xml file:
Various error messages were thrown by the container, one of it telling to have a closer look into the JBoss Wiki to determine the cause of deployment failure when using JSF application.
The problem was, that my application is bundled the MyFaces API and Impl core packages but JBoss uses the java.net JSF implementation.
If you still would like to use the MyFaces implementation you have to add the following lines to your web.xml file:
<context-param>
<param-name>org.jboss.jbossfaces.WAR_BUNDLES_JSF_IMPL</param-name>
<param-value>true</param-value>
</context-param>
The full article is available under the following URL: http://wiki.jboss.org/wiki/Wiki.jsp?page=JBoss5AndMyFaces
Monday, November 05, 2007
Comparison of different Repository Managers
Deng Ching wrote a good blog entry about existing repository managers. Repository managers have become a big part in software development. Maven without a good organized and well structured repository would be useless. Besides Maven, repository managers can also be used by Ant or Ivy.
Please note that Deng Ching is a developer of Maven Archiva. So his comparison might be not as neutral as you might expect.
Please note that Deng Ching is a developer of Maven Archiva. So his comparison might be not as neutral as you might expect.
Saturday, October 27, 2007
WLAN on Ubuntu Gutsy Gibbon (7.10) with IPW3945 and WPA encryption
I updated from Feisty to Gutsy yesterday and had massive problems making an internet connection via wlan. My Acer Aspire 5650 has an Intel IPW3945 WLAN card and the kernel modules were loaded successfully without any errors. The restricted WLAN driver was listed as "in use" in Ubuntu's restriced driver manager, so I expected to have a working driver configuration.
Somehow I assumed it had something to do with the network manager. So I completely removed the Network Manager via
You can test your wpa_supplicant configuration using the following command:
After this I restarted my system and I got a working wlan connection to my Access Point.
Somehow I assumed it had something to do with the network manager. So I completely removed the Network Manager via
apt-get remove network-managerand configured my wlan interface (using instructions from a german ubuntu forum) manually editing /etc/network/interfaces:
iface eth1 inet dhcp wpa-conf /etc/wpa_supplicant/wpa_supplicant.conf auto eth1My wpa_supplicant.conf looks something like this:
ctrl_interface=/var/run/wpa_supplicant
eapol_version=1
ap_scan=1
network={
ssid="YourWlanSSID"
# scan_ssid=1
proto=WPA
key_mgmt=WPA-PSK
pairwise=TKIP
group=TKIP
psk=YourPSK
}
Note: I am using WPA encryption for my WLAN.You can test your wpa_supplicant configuration using the following command:
sudo wpa_supplicant -i eth1 -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf -dOption -i defines the network interface name of your WLAN card. Option -D declares the driver to use and option -c defines the wpa_supplicant configuration file.
After this I restarted my system and I got a working wlan connection to my Access Point.
Tuesday, October 23, 2007
Finding a JAR archive where a class belongs to
Ever wondered to which JAR archive a specific Java class belongs to? Sometimes you need this information, because your application server throws a ClassNotFoundException. This can be caused by a lib or another framework that instantiates classes dynamically at runtime using a Class.forName call.
The Jarminator is a tool which helps you browsing single or multiple JAR archives and may help you in finding the correct JAR archive which contains the missing class.
The Jarminator is a tool which helps you browsing single or multiple JAR archives and may help you in finding the correct JAR archive which contains the missing class.
Monday, October 22, 2007
Check out Scott McKeon's album "Can't Take No More"
A friend of mine told me to lend an ear to Scott McKeon. Scott who?? I asked? Scott McKeon! Well, Scott McKeon is a British Blues guitarist who recently released his debut album "Can't Take No More". This album was produced by Jesse Davey - the former guitarist of "The Hoax".
So what is it all about? This album sure is a hammer! The more I listen to it, the more I like it! Scott has a style of his own and really hits the floor. He plays hard and loud and sometimes his tone reminds me of a man now buried in Austin, Texas. On the other hand there is his ability to play slow and soft. He's not the type of guitarist who tries to play as many notes as possible.
Well, what's the bottom line?
He has passion, a great technique and yes this man can sing!
So what is it all about? This album sure is a hammer! The more I listen to it, the more I like it! Scott has a style of his own and really hits the floor. He plays hard and loud and sometimes his tone reminds me of a man now buried in Austin, Texas. On the other hand there is his ability to play slow and soft. He's not the type of guitarist who tries to play as many notes as possible.
Well, what's the bottom line?
He has passion, a great technique and yes this man can sing!
Sunday, October 07, 2007
Installation of Canon Pixma 4300 under Debian Linux using CUPS
I bought a new printer (Canon Pixma 4300) and had a few problems installing it under Debian Linux. I found a very good installation instruction and I would like to share it with you.
Install necessary packages
sudo apt-get install alien libxml1 libpng3 libtiff4
Download original drivers
wget ftp://download.canon.jp/pub/driver/bj/linux/cnijfilter-common-2.70-1.i386.rpm wget ftp://download.canon.jp/pub/driver/bj/linux/cnijfilter-ip4300-2.70-1.i386.rpm
Convert RPMs into Debian packages
sudo alien -d cnijfilter-common-2.70-1.i386.rpm sudo alien -d cnijfilter-ip4300-2.70-1.i386.rpm --scripts sudo dpkg -i nijfilter-common-2.70-1.i386.deb sudo dpkg -i cnijfilter-ip4300-2.70-1.i386.deb
Create symlinks
sudo ln -s /usr/lib/libpng12.so.0 /usr/lib/libpng.so.2 sudo ln -s /usr/lib/libtiff.so.4 /usr/lib/libtiff.so.3
Restart CUPS
sudo ldconfig sudo /etc/init.d/cupsys restart
Saturday, October 06, 2007
New Stevie Ray Vaughan album coming in November
Epic/Legacy is going to release a new Stevie Ray Vaughan album on November 6th, 2007. This album features duets Stevie did with various artists. Some of the songs are album versions and some of it are live versions.
More info can be found at Epic/Legacy's official site: http://www.legacyrecordings.com/Stevie-Ray-Vaughan/Solos-Sessions-and-Encores.aspx
Another new release will appear also on November 6th, 2007: A new version of the "Pride And Joy" DVD containing more material (eg. the MTV Unplugged session) in better (5.1) sound mix. More info can be found here.
More info can be found at Epic/Legacy's official site: http://www.legacyrecordings.com/Stevie-Ray-Vaughan/Solos-Sessions-and-Encores.aspx
Another new release will appear also on November 6th, 2007: A new version of the "Pride And Joy" DVD containing more material (eg. the MTV Unplugged session) in better (5.1) sound mix. More info can be found here.
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