Chris Johnston

I was trying to do a simple little “hello world” script in Flash MX 2004 Professional using Flash Remoting and ActionScript 2.0, but it just would not work. I knew I had installed the Flash Remoting components for ActionScript 2, but it seemed like it could not find the required files. I kept getting the following error:

class 'import mx.rpc.RelayResponder' could not be loaded

After a quick little search on Google, I found the answer. Apparently there is a bug in the installer that prevents all the files from being installed. If you are having similar problems then the solution is to download the sources and install them yourself.

AsUnit is an Open-Source, Unit Test Framework for Macromedia Flash ActionScript 2.0. It is fully integrated into the Macromedia Flash MX 2004 Professional IDE, but it’s primary features require minimal interaction with the Flash Environment.

I have not tried the software as of yet, but porting JUnit to ActionScript 2.0 and Flash can only be a good thing. The website has a link to Colin Moock’s site where he says good things about AsUnit — that’s good enough for me.

Javalobby.org has posted a review of “Head First Design Patterns”:

Most Java books focus on Java syntax, and on Java’s support for object oriented programming. However, they fall very short when it comes to actually teaching how to apply object oriented programming. Many computer science courses also fall short when it comes to teaching how to actually apply object oriented programming, hence we end up with programmers who over-use inheritance and thus write code that is very difficult to maintain. That is where Head First Design Patterns come to the rescue.

This review is just one more reason to run out and purchase this book.

Bea dev2dev has an article on performance tuning EJB applications.

This is the first of a set of two articles and will cover tuning EJB applications specific to stateless and stateful session beans. The second article will focus on the Entity beans, CMP beans in particular. This article has been written with reference to the EJB container in WebLogic Server version 8.1, Service Pack 3.

Links to tutorials and documentation for Spring:

• Official Spring documentation
• Introductory article about Spring on theServerSide.com website
• Developing a Spring Framework MVC application step-by-step
• Hibernate / Spring / Middlegen / XDoclet Tutorial v1.5

As I find more links, they will be added here.

As far as I can tell, RedHat has released RHEL 4. Check it out if you are interested. Now all I have to do is wait for While Box Linux to release their version.

JavaLobby.org has an interesting discussion on when to use JUnit and testing tools in general. The stimulus for the discussion is someone who posted a question stating that they have never used JUnit and where curious as to when and if they should use it. It is the comments that really establish the case for unit tests and test driven development. So if are questioning the use of JUnit, have a read.