Solutions for Java developers
04/23/09
JavaWorld's Java Tips series was one of its most popular
long-running series (1996 through 2003) and still ranks an one
of our most read archives. The new Java Tips blog, which debuts
today, will feature short, relevant tips, tricks, workarounds
and introductory tutorials, from one Java developer to another.
Read today's tip: Extend declarative caching services for
Spring http://www.javaworld.com/community/?q=node/2821
Related:
1. Peruse the Java Tips Archive - 143 tips in all!
http://www.javaworld.com/columns/jw-tips-index.html
2. Subscribe to the Java Tips Blog feed
http://www.javaworld.com/community/blog/21645/feed
3. Got a tip? Submit it here mailto:jwedit@javaworld.com
By Charles Nutter
There's been a lot of supposition about the future lately, and
I've certainly read and succumbed to the temptation of the
prognosticator. I'm not going to comment on any of the players
or put forward my own suppositions about what might happen. What
I will do here is talk about what *should* happen.
It's apparent that the Java platform is at a crossroads. One
path leads to irrelevance, be it through general apathy that
important technologies are getting sidelined, or through active
emigration due to bureaucratic processes and waterfall platform
evolution. The other path leads to a bright, open future, where
polyglots romp and play with fresh new languages and developers
have freedom to use whatever tools they feel are necessary for a
given job. Given the large investment many of us have in this
platform, we need to start talking now about which direction we
want to go.
I've been doing a lot of thinking about the future of the Java
platform and my future developing for it, and I've come up with
a few things I believe must happen soon to ensure the future of
the JVM and the applications and languages built for it.
Languages
As you might expect from me, the first area involves supporting
many languages on the JVM. Over the past three years we've seen
a spectacular transformation take place. The "Java" VM has
become a truly multi-language platform. People are putting into
production applications running all sorts of languages, often
writing absolutely no Java to do so. And this is how things must
be...this is how the platform is going to survive.
As I see it there are currently three primary players in the
language domain: JRuby, Scala, and Groovy (in no particular
order). I include these three due to the relative completeness
of their implementations, vague popularity metrics, and
availability of production use cases. These three languages, one
static and two dynamic, bear further exploration ...
Read more: The future of Java, Part 1: Languages and the JVM
http://www.javaworld.com/community/?q=node/2817
What do you think: How will Oracle's 'integrated enterprise'
strategy impact the Java ecosystem?
http://www.javaworld.com/community/node/2807
More about the Oracle/Sun merge:
1. Oracle/Sun: The end of Java as we know it?
http://www.networkworld.com/nljavaworldsente193257
2. Oracle/Sun: Five things that will change
http://www.networkworld.com/nljavaworldsente192773
3. Oracle buys Sun: Ellison cites Java, Solaris
http://www.networkworld.com/nljavaworldsente193258
4. Oracle acquires Sun in $7.4 billion stunner
http://www.networkworld.com/community/node/41064
New Podcast: Enterprise clustering and Terracotta 3.0
Alex Miller is a respected Java concurrency and scalability
enthusiast who works on Terracotta, an open source, Java-based
clustering system. In this talk with Andrew Glover, Alex
demystifies Terracotta, explaining the programming magic that
enables enterprise customers to run 50 to 100 JVMs on a single
application server instance. Alex also talks about Terracotta's
"sweet spot" -- storing session data off of the database -- and
Terracotta 3.0, which promises new features that he says will
eliminate certain scalability barriers.
Listen up: Alex Miller: Enterprise clustering with Terracotta
http://www.networkworld.com/nljavaworldsente191681
When the job changes but the programmer doesn't, Part 2: Saving
Frank's job http://www.javaworld.com/community/node/2796
By Esther Schindler
Last week, I described the plight of a maintenance programmer
whose company was moving to a new language and development
platform. Although Frank has worked for the medium-sized company
for some years, he's just not being productive. I promised the
rest of the story this week ....
Deadlock anti-patterns #3: Incremental locking
http://www.javaworld.com/community/node/2789
By Obi Ezechukwu
Tthe incremental locking anti-pattern is simple, well-known, and
well documented -- and is unfortunately still a frequent
mistake. Chances are that most developers who have had the
misfortune of debugging deadlocking code would have come across
this pattern at some point in their career ...You've hit the tip of the iceberg: Read more in JW Blogs
http://www.javaworld.com/community/
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ALSO FEATURED ON JAVAWORLD
Lean service architectures with Java EE 6
http://www.networkworld.com/nljavaworldsente191680
Thanks to Java EE 6's simplified development model, a few
interfaces and annotated classes are all you need to implement
the facade, the service, and the domain structure that
constitute a lean service-oriented architecture. Surprised? Read
on.
Writing good unit tests, Part 2: Follow your nose
http://www.networkworld.com/nljavaworldsente191096
Klaus Berg continues his investigation of the tools and best
practices that facilitate programming with GUTs. Get tips for
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test code. Examples are based on JUnit 3 and 4, TestNG, and
Hamcrest.
Jump into JavaFX, Part 4: The advanced APIs
http://www.networkworld.com/nljavaworldsente190628
Jeff Friesen completes his comprehensive tour of the JavaFX APIs
with a look at how JavaFX handles media, GUIs, and special
effects. You'll also try your hand at building and deploying a
stock-ticker application to Google Chrome.
REST for Java developers, Part 4: The future is RESTful
http://www.networkworld.com/nljavaworldsente190066
Find out why REST interfaces are foundational for emerging
architectures such as the Semantic Web. Brian Sletten takes a
big-picture view of REST, now and in the future, in this final
article in his series.
Understanding actor concurrency, Part 2: Actors on the JVM
http://www.networkworld.com/nljavaworldsente188943
Erlang isn't the only language for implementing actor
concurrency. Find out how actors work and see them implemented
in Scala's standard library, Groovy's GParallelizer, and the
Java libraries Kilim, ActorFoundry, Actors Guild, and Jetlang.
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This newsletter is sponsored by Dell
Vista Migration: What Really Happens?
If you are searching for real-life facts about migrating to
Windows Vista and the day-to-day operation of it, this webcast
is aimed at helping you eliminate the guesswork about a
migration and present the reality you need to hear from someone
who is in the migration trenches.
http://adserver.fattail.com/redir/redirect.asp?CID=297822
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UPCOMING ON JAVAWORLD
-Know your Oracle application server
-Cloud-ready, multicore-friendly code, Part 2
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Podcasts:
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JavaWorld's Daily Brew - Starting conversations in the Java
developer community
http://www.javaworld.com/community
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