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Building A J2EE App with Linux
Dejected @Work writes "If you think "Hello World" is always simple and boring try building it with a entity/session EJBs, a servlet, a JSP page, and a HTML home page on Linux. This tutorial shows you how to develop, test, run, and debug a complete J2EE application using Linux and WebSphere(trial download)."
The problem I see repeatedly with J2EE adoption is the insistence of developers to use every facet of the API. That means EJBs, JSPs, servlets, JMS (messaging), transaction services etc. People don't seem to realise that J2EE is a set of APIs, and a simple servlet/JSP/JDBC solutions is just as 'J2EE'-compliant as a full bean-driven, JTA-enabled solution.
To ease yourself in, start with servlets and JSP (obviously for web-enabled apps). Then start adding beans (stateless session then stateful session and then entity), etc. Don't hope to throw every Java-enabled TLA together and hope for a performant J2EE solution!
Both companies support open source
What "both companies"? Is Sun one of them? Their support for open source is highly dubious. For certain, it's hardly in their interests to make Linux the "ideal" Java platform.
so the community has made sure the integration is tight and optimized
Give one example of how Java is "integrated" into Linux, much less "tight and optimized". On my system, Java is terribly integrated: I have to download parts from all over the net and put them together myself. Most of those parts (like the 50 MB jre) don't feel very "tight and optimized". Indeed, it is the Java industry's disregard for (or fear of?) open source that most impedes "the community"'s efforts to make Linux a good Java platform.
the performance of C++ with the ease of use of Python
Java "performance" is still largely vaporware: "just one more technology, and we'll be as fast as C++". (Not that this matters for most applications.) And if Java is as easy to use as Python, why am I so grateful for Jython?
C# and .NET ... by all appearances will be to Java what Java was to
Linux, minus X11 and plus COM
Ok, now I think you're just putting us on! Either that, or you didn't do very well on the analogies section of the SAT. :-)
The evaluation of an action as 'practical' . . . depends on what it is that one wishes to practice.