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During the last week I had to interview five developers for a position that required the following skills: Flex, Java, Spring, and Hibernate.  Most of these guys had demonstrated the 3 out of 10 level of Flex skills even though each of them claimed a practical experience on at least two projects. But this didn’t surprise me – Flex is still pretty new and there is only a small number of developers on the market who can really get Flex things done. What surprised me the most is a low level of Java skills of most of these people. They have 5-8 years of Java EE projects behind their belts, but they were not Java developers. They were species that I can call Robot-Configurator.  Each of them knew how to configure XML files for Spring, they knew how to hook up Spring and Hibernate and how to map a Java class to a database entity. Some of them even knew how to configure laz... (more)

An Introduction to Abbot

Graphical user interface (GUI) testing is a potentially problematic area because constructing effective test cases is more difficult than the corresponding application logic. The roadblocks to effective functional GUI testing are: Traditional test coverage criteria like "80% coverage of the lines of code" may not be sufficient to trap all the user interaction scenarios. End users often use a different user task interaction model than the one conceived by the development team. Functional GUI testing needs to deal with GUI events as well as the effects of the underlying applicati... (more)

Java for Managers -- What Should They Know?

Last month, JavaBlackBelt completed a survey where developers said their teams would be 25% more productive if their management committed to skills management... which led me to consider: Which Java technologies do developers think that managers should understand better in order to make great decisions about skills management? I'll suggest, as a start: -- Java SE and EE basics -- ORM's (Hibernate, ...) -- Web Frameworks (lStruts 2, ...) -- IDEs (Eclipse, ...) -- Source Code Mgmt -- Testing Methods -- JavaScript -- Ajax Very open to your thoughts, and who might find such a course usef... (more)

How to Diagnose Java Resource Starvation

We can visualize resource starvation using an elaborate rendition of the Dining Philosophers Problem. This classic metaphor of resource allocation among processes was first introduced in 1971 by Edsger Dijkstra in his paper "Hierarchical Ordering of Sequential Processes." It's been a model and universal method for verifying theories on resource allocation ever since. The metaphor goes like this: There are three well-known philosophers in an Asian bistro. Dinner is served but they are only given three chopsticks because the restaurant's supply truck has been stuck in a snow storm f... (more)

eLearning + Coaching = Breakthrough in Java Skills?

JavaBlackBelt just announced its “Coached e‐Learning” for Java developers. In a developer survey to be released next week, this Coached e‐Learning was selected as the #1 choice for Java learning compared with classroom training and self‐paced e‐Learning. Here’s how it works: 1. In these courses, the coach meets with the student to begin each course, reviews the course plan and materials, and agrees to a schedule. 2. The student then learns at their own pace from the JavaBlackBelt eLearning platform ‐‐ online materials and videos, community forums, exercises, and exams. 3. Alon... (more)

Java Kicks Ruby on Rails in the Butt

This article tries to demonstrate that Java can be more productive than Ruby. We are going to develop the same application of the article Rolling with Ruby on Rails Revisited (part 1 [1] and part 2 [2]) but using POJO [3]s annotated with JPA [4] and a Model Driven Framework, OpenXava [5] in this case. The result is that with less code, and less time you obtain a more powerful application. Ruby and rails: The regressive framework Ruby on rails [6] is so elegant, so easy, so productive. I cannot avoid read and heard continuously these comments. For example, the article Rolling with ... (more)