Is it possible to fail a load test?
It’s not really possible to fail a load test because by default it always ends with status ‘Completed’. Because of that anytime a load test completes one musts analyze the results – if performance stayed at the acceptable level. So, despite being a powerful tool, load tests require human attention, which makes the whole testing…
adminWhat if you extend an abstract class and implement an interface when both define a method with the same name?
Imagine you need to implement a class that extends an abstract class and implements an interface when both define a method with the same name – test(). Example interface Implementable { public void test(); } abstract class Superclass { public abstract void test(); } public class Test extends Superclass implements Implementable { /* definition of…
Ireland again
Greetings from Ireland! It’s the second time I went to Galway, Ireland. Again the Green Island welcommed us with rain… Again, I work as a researcher, Java programmer in Digital Enterprise Research Institute (DERI), Galway, Ireland. The main topic of my research is how to adopt Social Semantic Information Sources (SSIS) to e-Learning. Actually, this…
Exeptions and Errors in Java
In the diagram below I present the hierarchy of most common Exceptions and Errors: Object | |_ Throwable | |_ Error | | | |_ AssertionError | | | |_ LinkageError | | | | | |_ ExceptionInInitializerError | | | | | |_ NoClassDefFoundError | | | | |_ VirtualMachineError | | | |_…
Test your Java experience for free – JavaBlackBelt
Recently I’ve come across another very interesting social service – JavaBlackBelt. Basically it gathers programmers who use Java language and related frameworks and aspects (OO programming, JSP, Struts, JSF, EJB). There are even exams on C#, Ruby, JavaScript, and AJAX but some of them are still beta versions. Of course I’ve taken a couple of…
IKHarvester
Some time ago I wrote about Didaskon, a framework for composing curriculum for a specific user, basing on his profile and using formal and informal knowledge. I belong to team of the developers. At the moment, I am developing the one of its component – IKHarvester (Informal Knowledge Harvester). It aims at collecting (harvesting) data…
Didaskon
Here is some information taken from my Master’s Thesis (still developed).. Didaskon is a project developed in Digital Enterprise Research Institute (DERI), Ireland by a few students, including myself. It is a research project in the elearning field. Its main goal is to deliver a framework for assemblying an ondemand curriculum from existing Learning Objects…
Web 2.0 gaming
Recently, I’ve encountered doof, a new Web 2.0 service, kind of “new one”… The authors promote it with the slogan: “Have fun playing games and competing in tournaments, pesonalising your profile and expressing yourself”. Then, what actually doof is? First of all, doof is a fancy website with astonishing flash design (see above). User can…