Thursday Dec 10, 2009

Java EE 6 and GlassFish v3 Now Available

Today Sun announced the general availability of Java Platform, Enterprise Edition (Java EE) 6 and GlassFish v3. As many of you know, Java EE 5 made it significantly easier to develop web and enterprise applications. However, Java EE 6 pushes the usability envelope even further, adding ease of use improvements in many areas of the platform. For example, you can now use annotations to define web components such as servlets and servlet filters. In addition, Java EE application packaging requirements are much simpler. For example, you can add an enterprise bean directly to a web archive (WAR) file. You no longer need to package an enterprise bean in a Java archive (JAR) file and then put the JAR file in an enterprise archive (EAR) file.

Beyond those improvements, Java EE 6 adds many new features that make the platform more flexible and extensible. Java EE 6 introduces the concept of profiles, configurations of the platform that are designed for specific classes of applications. The first of these profiles, the Web Profile, is now available. It offers a subset of the Java EE platform designed for web application development.

On the extensibility front, Java EE 6 includes more extensibility points and more service provider interfaces than ever before. This allows you to plug in technologies — even frameworks — in your Java EE 6 implementations in a standard way. And with new features such as web fragments, Java EE 6 modularizes deployment descriptors, something that enables web frameworks to self-register, making it easy to incorporate and configure them in an application.

GlassFish v3 is a lightweight, flexible, and open-source application server that is the reference implementation for Java EE 6. But it's much more than that. It also offers a wide range of new productivity features, such as a modular runtime based on OSGi, that makes for extremely fast startup, efficient memory use, and runtime performance. GlassFish v3 also supports a deploy-on-save feature, such that when you update an application and save the changes in an enabled IDE such as NetBeans 6.8, the application is automatically redeployed. Many other enhancements, such as native support for scripting languages and frameworks like JRuby on Rails, make GlassFish v3 an ideal application server for web and enterprise applications.

Learn more about Java EE 6 in the article Introducing the Java EE 6 Platform. Learn more about GlassFish v3 at the GlassFish Community site and The Aquarium blog. Download GlassFish v3.

Tuesday Jul 07, 2009

New JDK 7 Feature: Support for Dynamically Typed Languages in the Java Virtual Machine

Over the years, the Java virtual machine (JVM) has been host to a growing number of languages. Increasingly, JVM implementations of dynamic languages are becoming available, such as JRuby, an implementation of the Ruby programming language, Jython, an implementation of the Python programming language, and the Groovy scripting language.

However, developers of these dynamic languages have faced a troublesome obstacle. When developers write engines for dynamically typed languages that run in the JVM, they have to satisfy the requirements of the Java bytecode that the JVM executes. Until now, that bytecode has been designed exclusively for statically typed languages. This design has been especially painful for developers when generating bytecodes for method invocations.

But help is on the way. JSR 292: Supporting Dynamically Typed Languages on the Java Platform, which is being implemented in JDK 7, introduces a new Java bytecode instruction for the JVM, invokedynamic, and a new method linkage mechanism based on method handles.

Learn more about this new JDK 7 feature in the article Support for Dynamically Typed Languages in the Java Virtual Machine.

Friday Jun 12, 2009

Enterprise Tech Tip: A Common Ant Build File for Metro-Based Services and Clients

If you're like most developers, you're always looking for shortcuts that simplify developing and testing code. In this Tech Tip, Metro architect Harold Carr describes just such a helpful shortcut -- a common ant build file that simplifies the task of building and testing Metro-based services. The build file can builds a service from a WSDL description or from a Java class annotated with @WebService. It then either creates a WAR file and deploys the WAR file to a container or it invokes the Endpoint.publish() method to publish the web service endpoint using the HTTP server built into the Java platform.

Read about it in the tip A Common Ant Build File for Metro-Based Services and Clients.

Deep Dive: MySQL Tips For Java Developers

MySQL is the world's most popular open-source database, and there are a lot of Java developers who use MySQL databases in their applications. In this Deep Dive, Mark Matthews, architect for Enterprise Tools Team at Sun Microsystems, demonstrated some of the techniques that can help Java developers get more out of their applications that use MySQL.

Mark has a lot of experience regarding the use of MySQL and Java technologies. Aside from being an architect for MySQL tools at Sun, Mark is the original developer and maintainer of Connector/J, the MySQL JDBC driver.

Mark covered a number of MySQL tips for Java developers including some lesser known configuration options, connection pool settings, and some special MySQL language elements such as ON DUPLICATE KEY UPDATE.



Notes From the 2009 JavaOne Conference

The numbers were a bit down from previous years and perhaps there was a little less buzz, but I found this year's JavaOne Conference to be as interesting and fun as ever. As always, I was part of the Sun Developer Network team that covered the general and technical sessions for the conference web site. I was also host for a number of "Man/Woman on the Street" interviews with conference attendees.

I found the sessions to be uniformly excellent. It seemed that the quality of the presenters and their demonstrations at these sessions was exceptionally high. I hope those of you who went to the conference were equally impressed with the sessions. If you didn't get a chance to attend the conference, you can view video replays of the general sessions.

You can find all of the articles covering the sessions here. I covered the following sessions:

I also had the opportunity to cover the general session for CommunityOne West, a conference focused on communities and open source. CommunityOne West started the day before JavaOne. Cloud computing and a new release of OpenSolaris were the stars of that session. BTW, if you're into cloud computing, there are a lot of good cloud-related sessions that my SDN teammates covered during the JavaOne conference. These include:

Also see the new Sun Cloud Developer Tools site.

You can find a great wrap-up of the conference here. As the wrap-up notes, this may be the final JavaOne Conference. I've had the pleasure to attend the last 10 of them. Covering these conferences always required a lot of preparation work and a goodly amount of toil and sweat. But I always found them educational, even exhilarating. They gave me a chance to learn, a chance to share ideas, and a chance to meet some of the most interesting folks on the planet -- the Java community.

Thursday Apr 30, 2009

Deep Dive: Sun GlassFish Web Space Server 10.0

At the 2008 JavaOne Conference, Sun made an exciting announcement regarding a collaboration agreement it reached with the Liferay open portal community. Both companies agreed to share code and release products from a common codebase. Sun GlassFish Web Space Server is an outgrowth of that common codebase, bringing together features and technologies from Liferay as well as Sun's OpenPortal communities.

In this Deep Dive video, James Falkner, Sun's Product Architect for portal technologies, demonstrates many of the features that Sun GlassFish Web Space Server offers for administrators, developers, and end users. Along the way, he demonstrates some cool features such as hooking portlet events together graphically, and changing the theme for a portal page in Adobe Dreamweaver using Web Space Server's View Designer plugin.

There's so much functionality in the Web Space Server that it was difficult to fit James's demonstrations into one short video. So instead we offer multiple videos -- or a video in multiple parts. Watch it. I think you'll see that Sun GlassaFish Web Space Server 10.0 is a fun and highly functional product.

  • Part 1: Learn about the key features in Sun GlassFish Web Space Server 10.0.


Wednesday Apr 29, 2009

JavaFX App-O-Rama

Although the JavaFX platform is only a few months old -- its initial full release was in December 2009 -- people are already building some really cool applications with it. A new article, titled JavaFX App-O-Rama: Applications From the Community, highlights three community based projects that are producing cool, innovative JavaFX applications.

Here are some other good places to find cool JavaFX applications, sample programs, and demonstrations:

Monday Feb 23, 2009

Two excellent JavaFX videos

There are two excellent JavaFX -related videos you ought to check out:

  • JavaFX Deep Dive with Jacob Lehrbaum. In this video, Jacob Lehrbaum, the Senior Product Line Manager for JavaFX Marketing at Sun Microsystems, demonstrates some of the exciting features in the JavaFX platform.
  • 15 Minutes or Less - JavaFX. Join Sun Microsystems' Robert Eckstein as he teaches you the fundamentals of the new JavaFX programming language, all in fifteen minutes or less!

2009 JavaOne Conference, June 2-5, San Francisco, CA

Believe it or not, before you know it, it will be time for another JavaOne Conference. This year's conference promises to be bigger and better than ever. The JavaOne Conference is a great way to stay on top of everything new and different, both inside and around Java technology. If you register by April 22, 2009, you can save $200 off a Conference Pass or Conference Plus Pass. So register now at http://java.sun.com/javaone.

Thursday Jan 15, 2009

Part 3 of the GlassFish and MySQL Series Now Available

The article GlassFish and MySQL, Part 3: Creating and Using a Web Service is now available. This article is the third in a series of articles about the use of MySQL with GlassFish. Ive collaborated on these articles with Java technology evangelist Carol McDonald. In Part 3, you'll learn how easy it is to convert the controller layer of the web application introduced in Part 2, that is, the layer of the application that performs the create, read, update, and delete (CRUD) operations -- into a SOAP-based web service. You'll also learn how to create a client for the web service.

Wednesday Nov 05, 2008

GlassFish and MySQL: The Series

With more than 100 million downloads, MySQL is the world's most popular open-source database. MySQL's popularity is indicative of the growing adoption of open-source software. Developers are using open-source software because it offers them a reliable and low-cost alternative for developing their applications. This adoption trend extends to middleware too. For example, open-source servers are replacing proprietary servers in many enterprises. Case in point: GlassFish, an open-source, enterprise-quality, Java EE 5-compliant application server, enjoys significant popularity. With more than seven million downloads since its release in May 2005 and more than half a million downloads a month, GlassFish has a widespread and growing community of users.

Read the article GlassFish and MySQL, Part 1: A Perfect Combination for Web Applications and learn about the advantages of using MySQL with GlassFish and why the combination is a perfect choice for developing and deploying web applications.

This article is the first in a series of articles about the use MySQL with GlassFish. The second article in the series, GlassFish and MySQL, Part 2: Building a CRUD Web Application With Data Persistence, shows you how to use the NetBeans IDE with GlassFish and MySQL to build a create, read, update, and delete (CRUD) web application that accesses persistent data.

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