Author: Webner
Tomcat – java.lang.UnsupportedClassVersionError: Bad version number in .class file
This is because your class files were compiled with a Java compiler not compatible with JVM in use within tomcat. If you compiled on same machine on which you have tomcat running, you must be having 2 JDKs (or a
Fatal error: Allowed memory size of 16777216 bytes exhausted
You need to change the maximum memory allowed to a php script to run. For this you need to open your php.ini (location of this file will depend on where php is installed on your machine). In my case php.ini
Proxy Pattern and Dynamic Proxies
Proxy pattern is about using proxy in front of another entity. It is a structural pattern, which means, it is implemented by changing/extending the structure of code. One example of proxy classes is remote communication. In case of remote communication,
LAN Driver Not Installed
I had not done Windows XP installation for long time by myself. After I did it couple of weeks back, I went into “My Network Places” to configure internet access, only to find no “Local Area Connection” element there in
Forgot Linux Root Password
Recently I forgot root password of Open SuSE 10.2 Linux installed on my laptop. I searched over net to find steps below following which I was able to successfully reset (change) root password: 1. Boot the system and when you
Accessing webserver over LAN (Linux+windows)
On one machine having SuSE 10.2 OS, I am running Jboss app server 4.2. By default it runs http server on port 8080. I was able to access it from browser using http://127.0.0.1:8080 URL. But I was not able to
Database Surrogate PKs – Few points
I am sure this is obvious stuff but anybody can overlook it, so I thought of adding it in my blog. Many programmers and database designers are using surrogate keys instead of natural keys as PKs (primary keys) now a
Making JRE work in Firefox – Suse 10.2 – 64 bit
Like a lot of other people, I faced problems in enabling Java in Firefox on Suse 64 bit OS. But it is working now so I thought of writing the obstacles and how to get rid of them. Basically it