Welcome to the OpenJDK Community

This is where Java SE platform developers and researchers gather to collaborate on the core reference implementation of Java technology - the JDK. Here's How to Get Started.

Open Sourcing the JDK

At JavaOne 2006, Rich Green, Sun's Executive VP of Software, said, "It's not a question of whether, but its a question of how." One year later at JavaOne 2007, Sun delivered on that promise and announced the source for a fully buildable JDK is now available under the GPL v2 license on java.net.

Get started now: OpenJDK Project

You can find more information about this announcement and other open source Java news at Sun's open source website

JDK 6 is out! A big THANK YOU to you, the JDK Community, in helping us get Java SE 6 out the door. You can download your copy here.

A. Sundararajan: Programmatically dumping heap from Java applications

In the troubleshooting BOF, we demonstrated how to use the jmap -dump option to dump heap dump of a running application and showed how to browse/analyze the resulting binary heap dump using the jhat tool.

(May 16, 2007)

Joe Darcy: Mixing-in an Enum

Effective Java discusses two variants of the type-safe enum pattern, one that allows subclassing and one that does not. The enum language construct added in JDK 5 only provides the non-subclassing variant (because supporting subclassing would have confusing interactions with switch statements and other enum features). However, having the enum class implement a mixin interface can restore some of the third-party extensibility of the ...

(May 15, 2007)

Patrick Keegan: JavaHelp and Swing Application Framework

Adding JavaHelp to a simple Swing application using NetBeans; getting a glimpse of Actions in Swing Application Framework (May 15, 2007)

David Van Couvering: Running a SQL script from Java in Java DB

A nice little tip about how to run your .sql file from within Java (May 15, 2007)

Daniel Fuchs: We are open sourcing the Java Dynamic Management Kit

You may have seen an OpenDMK project lingering on java.net for a few weeks: Well, I am pleased to announce that we have pushed a first snapshot of the sources just before JavaOne.

(May 15, 2007)

Joe Darcy: Closures, Visitors, and Hedgehogs

It has been said that there are foxes and there are hedgehogs and "the fox knows many tricks, but the hedgehog knows one great trick." The one great trick of computer science is adding a level of indirection in the right place. There is an interesting similarity between the level of indirection added by the visitor pattern and by closures.

(May 14, 2007)

Kirill Grouchnikov: Bringing life to Swing desktop applications - all you need to know

This entry provides the links to all the media and applications shown at the "Bringing life to Swing desktop applications" technical session at JavaOne 2007. —  Kirill Grouchnikov
  (May 14, 2007)

David Herron: What could Sun do with Java after Java7?

In Farewell To GCJ, Sun Hires GCJ Architect For JavaFX, while discussing Per Bothner's being hired by Sun, Wei Qi Gao asks: (For example, what are they going to do after Java 7? Add a macro system?) ... er... I... —  David Herron
  (May 12, 2007)

David Herron: Some OpenJDK answers

It's the last day of JavaONE, I spent most of my time in the OpenJDK booth talking with people. And their questions are on my mind. Here's a few answers to common questions. What happens with people selling commercial apps... —  David Herron
  (May 12, 2007)

Peter von der Ahé: OpenJDK desktop background

I created an OpenJDK desktop background. My graphic talents are limited, so I hope this can serve as an inspiration for more talented people. (May 14, 2007)

Joshua Marinacci: JavaOne: Another One is Done

It's Friday morning and I'm watching the James Gosling keynote from the bean bags in front of the big screen. I'd say this was the most exciting JavaOne I've ever been too. We really saw desktop Java in full force.... —  Joshua Marinacci
  (May 11, 2007)

Tom Marble: Double Espresso

Wow. This has been the most intense JavaOne I have ever intended. I have met so many interesting people and have had a great time talking about OpenJDK and the possibilities now. I know many of my friends have already done amazing things with OpenJDK... I can't wait to learn about all the cool hacking! I fully intended to blog on events this week, ...

(May 11, 2007)

Ron Hitchens: It's The JVM, Stupid

Maybe we should start calling it JvmOne —  Ron Hitchens
  (May 11, 2007)

Patrick Curran: Hello, brave new world

Hello from JavaOne, Sun's annual Java conference. This is a major event, and consumes a great deal of our time in preparation. This year was particularly hectic, since we've been working frantically to prepare for the release of the Java SE platform as open source. We promised at last year's JavaOne that we would do this, and now we're ready to go. Rich G ...

(May 11, 2007)

Timothy M. O'Brien: Simon Phipps on Forking Resistance, Open Source

Phipps has perfected the pitch for open source. You can tell he?s had to explain open source to a zillion executive types who have no idea what he is talking about. Here are some good quotes... (May 10, 2007)

OpenJDK: Here I come

Ditching the Keynote session at JavaOne I am sitting in the Alumni room and trying to get my head around the OpenJDK... (May 10, 2007)

Mark Reinhold: The OpenJDK Charter

A signature moment

(May 10, 2007)

Daniel Fuchs: OpenJDK is out, with a JMX and JConsole NetBeans project!

As you were already informed by many prominent bloggers from the Java Community, the OpenJDK Project is finally out!

(May 10, 2007)

David Van Couvering: Java DB Booth is hopping!

I hung out at the Java DB booth today, and we were busy! —  David Van Couvering
  (May 10, 2007)

Mark Reinhold: Liftoff!

On our way to escape velocity (May 08, 2007)

Michael Nascimento Santos: Tuesday afternoon

Fast chat with Neal Gafter, Geert, another general session, the Swing Application Framework and EJB 3.1. —  Michael Nascimento Santos
  (May 09, 2007)

David Herron: Quality and Open Source

Last night I attended, at Java ONE, a talk by David Schlesinger of ACCESS, formerly of PalmSource. What drew me was the title, about building open source communities, and I hoped to gain a little insight about the process since... —  David Herron
  (May 09, 2007)

John D. Mitchell: JaveOne 2007, Java Puzzlers Points Out Problems with Kitchen Sink

The ever interesting Java Puzzlers session is always a hit but also shows the nasty reality that the C++ disease has fully infected Java. (May 09, 2007)

Malcolm Davis: JavaOne Blog 4: JSR 296 Swing Application Framework, nice but lacking.

The JSR claims to be a conical form a Swing application.. (May 09, 2007)

Joshua Marinacci: JSR 296 Session Success

Another quick update. Hans and I did our session on JSR 296 today and it was a huge success. We were completely packed, over 500 people I think! More coming soon. —  Joshua Marinacci
  (May 09, 2007)

Stanley Ho: OpenJDK and Modules

The JSR 277 EG observer mailing list is now available on OpenJDK, and there is also a new project on OpenJDK for the implementation development of JSR 277 and 294. —  Stanley Ho
  (May 09, 2007)

Felipe Gaucho: Java Puzzlers strikes JavaONE

Do you know Java Puzzlers? A friendly advise for you: you must buy this book today - it is a fantastic experience. —  Felipe Gaucho
  (May 09, 2007)

John O'Conner: JavaFX -- Simplifying UI for Content Developers

What is JavaFX? It's a set of Java technologies that will make it easier to develop rich multimedia content on the Java platform. At it's core, it's a new scripting language that runs on desktops and mobile devices. From the... —  John O'Conner
  (May 08, 2007)

David Herron: OpenJDK out there, and already available as an ebuild on gentoo

Today is the second Java Freedom Day. November 13, 2006, is the first Java Freedom Day, and I would hope that it becomes a celebrated holiday. Today, May 8, is the second one. I'm at Java ONE and am really... —  David Herron
  (May 09, 2007)

Kelly O'Hair: OpenJDK Builds (Solaris & Linux)

OpenJDK Builds (Solaris & Linux) Anyone building the new OpenJDK bundles from openjdk.java.net should find that this is an easier build procedure than the JRL building from jdk7.dev.java.net. First off, it's just the basic JDK sources, no plugin or installer bundling logic has... —  Kelly O'Hair
  (May 08, 2007)

Jacob Hookom: JavaOne 2007 - JavaFX, Desktop, and JSF

I knew F3 was interesting, but until today, I didn't realize how much weight would be put behind it from Sun. Between MS, Adobe, and Sun-- will these become the preferred choice for "beyond the traditional web application"? —  Jacob Hookom
  (May 08, 2007)

Peter von der Ahé: Ask The Experts

Jon, Lubo, and I will be at Pavilion booth #1538 Thursday 3.30-4.30pm at JavaOne in the Moscone Center, San Francisco. This is a good chance to come and chat with us about javac. (May 08, 2007)

Doug Kohlert: JAX-WS 2.1 API Released

The JAX-WS 2.1 APIs are now released at jcp.org. —  Doug Kohlert
  (May 08, 2007)

Michael Nascimento Santos: Everyone is a Brazilian

It just happened again... —  Michael Nascimento Santos
  (May 08, 2007)

Arun Gupta: JavaOne 2007 - Day 1

John Gage kick started JavaOne 2007 this morning. He really explained the essence of JavaOne in 3 words "Don't be shy". Over the next 81 (now 79 hours), there is an ocean of information available in terms of General Sessions, Technical... —  Arun Gupta
  (May 08, 2007)

Felipe Gaucho: Thanks Netbeans Day 2007

Netbeans Day 2007 was simply fantastic. Congratulations for all of you that made it possible. —  Felipe Gaucho
  (May 08, 2007)

Jim Hurley: "Sliders gone Wild!" -- Notes from the Opening Keynote

All in all... a pretty packed opening keynote with some interesting announcements. —  Jim Hurley
  (May 08, 2007)

Mark Reinhold: Who are you?

Please build and then identify yourself. (Apr 28, 2007)

Simon Morris: Swing, and that New Car Smell

Is there any point to flashy GUI effects? Clearly, given they're all the rage at the moment, they must fulfill some need, but what? (Includes gratuitous Amiga-inspired drop shadow example.) —  Simon Morris
  (May 01, 2007)

Felipe Gaucho: Will Java become Open Source in JavaONE?

Open Source Java can be closer than you expect, and you can wake up next week with the free world at your hands —  Felipe Gaucho
  (Apr 30, 2007)

Peter von der Ahé: Suave JavaOne Schedule

The JavaOne schedule builder has been improved since last year, and it is now easier to resolve conflicts. This is much appreciated. However, the builder should have been written in Java or AJAX to limit the time required to reload the page after adding a session. (Apr 30, 2007)

Felipe Ortiz: Top Java SE 6 Features

Now that I have had some time to work with Java SE 6, I thought I share a list what I think are the top five features. —  Felipe Ortiz
  (Apr 30, 2007)

Peter von der Ahé: JavaOne 2007

Come to our BOF sessions at JavaOne and hear more about the Java programming language and the Java technology tools (including javac).

BOF-2899: Java Programming Language Features in JDK Release 7

Track: Java SE
Room: Gateway 102/103
Date: 08-MAY-07
Start Time: 22:00

BOF-2898: Java Programming Language, Java Compiler, and Related Tools and API

Track: Java SE; Open Source
Room: Room 105
Date: 09-MAY-07
Start Time: 19:55

(Apr 29, 2007)

David Herron: Opensville?

Welcome to Opensville, Population Zero is a blog that's been referenced by Slashdot right now. It's an interesting blog posting. I've never heard of this William Hurley, but he has an interesting thing to say. When I started with open... —  David Herron
  (Apr 29, 2007)

Kirill Grouchnikov: Bringing life to Swing desktop applications - teaser 2

Yet another reason to come to our technical session at JavaOne. —  Kirill Grouchnikov
  (Apr 28, 2007)

Kirill Grouchnikov: Borrowing from Vista - part II

This is the first part in a series about borrowing UI ideas from Vista. This time i'm borrowing the smart scroll on trees. —  Kirill Grouchnikov
  (Apr 28, 2007)

Alan Bateman: Multicasting with NIO

A long standing issue for many developers is that the java.nio.channels package has lacked support for Internet Protocol (IP) multicasting. In the NIO.2 early review draft specification you will see that we have addressed this issue by adding multicast support to DatagramChannel. Here's a small example that opens a DatagramChannel, binds the channel's socket to a local port, sets the network interface for multicast ...

(Apr 28, 2007)

Neal Gafter: A Consensus Closures JSR Proposal

I had set aside work on the closures prototype for a couple of months to write a JSR proposal that represents a consensus among the folks thinking about this area. You can find it at https://www.javac.info/consensus-closures-jsr.html. One of the things I learned is that unanimous agreement is rarely possible. There are those who feel that nothing should be done to the Java programming language, ...

(Apr 27, 2007)

John O'Conner: Using the Java Persistence API on the desktop

My latest exploration into the EE spec has helped me find another little treasure that I can bring back to the desktop: the Java Persistence API (JPA). —  John O'Conner
  (Apr 26, 2007)

Marina Sum: Launching Application Clients With Java Web Start

Read an eye-opener of an article on SDN. —  Marina Sum
  (Apr 26, 2007)

Eamonn McManus: JMX Technology at JavaOne

JavaOne is fast approaching, and there's quite a lot in store for those interested in JMX technology. —  Eamonn McManus
  (Apr 26, 2007)

Kohsuke Kawaguchi: Introducing Mock JavaMail project

Testing JavaMail applications is more difficult than necessary, because it involves in a lot of set up outside the test program. So I wrote a library to improve this. —  Kohsuke Kawaguchi
  (Apr 26, 2007)

Kohsuke Kawaguchi: How to convert java.net.URL to java.io.File?

Occasionally you need to convert java.net.URL to java.io.File. Do you know how to do it correctly? —  Kohsuke Kawaguchi
  (Apr 26, 2007)

David Herron: Re: Swing versus SWT Thread Confinement

In Swing versus SWT Thread Confinement is offered a suggestion to make Swing take a behavioral leaf from SWT, and to change Swing so that it "fails fast" when called from a thread other than the event dispatch thread. Since... —  David Herron
  (Apr 25, 2007)

Evan Summers: Splash Screen

Making a splash-screen for our Big Fat Swing application. —  Evan Summers
  (Apr 25, 2007)

Kirill Grouchnikov: Bringing life to Swing desktop applications - teaser 1

If you happen to be at this year's JavaOne, here's one session you don't want to miss. —  Kirill Grouchnikov
  (Apr 25, 2007)

David Herron: Re: Java with apt-get, what's the scoop?

Fabrizio Giudici asks Java with apt-get, what's the scoop? The big deal is we're taking steps towards a world where Java is a default part of more operating systems. Linux being very popular among the geeks we care about, we... —  David Herron
  (Apr 24, 2007)

Chet Haase: JavaOnederful Desktop Sessions

Here's my arguably subjective take on hot topics in the Desktop track. But heck, it's all good. —  Chet Haase
  (Apr 24, 2007)

Fabrizio Giudici: Java with apt-get, what's the scoop?

So the big news of the previous week was the availability of Java packages with the latest Ubuntu 7.04 (Faisty Fawn). I won't repeat what others already said, but now you can install Sun Java implementations with the standard Ubuntu tools for application maintenance (apt-get, Synaptic package manager, etc...). Now, what's the real benefit for us? —  Fabrizio Giudici
  (Apr 24, 2007)

Tom Marble: NetBeans in Ubuntu

Last week we announced the availability of the Java Stack on Ubuntu and one of the coolest parts of this announcement is including NetBeans in Debian native packaging. NetBeans has been available in a standalone Linux installer for many years. What's new now is the integration with the Debian packaging system which can, among other things, automatically pull in dependent packages such as the ...

(Apr 24, 2007)

Airlan San Juan: Let your Java app "feel the rain" on its skin

Your journey begins with the task of gently introducing your Java applications to the realities of the physical world. (Apr 24, 2007)

Fabrizio Giudici: Java with apt-get, what's the scoop?

So the big news of the previous week was the availability of Java packages with the latest Ubuntu 7.04 (Faisty Fawn). I won't repeat what others already said, but now you can install Sun Java implementations with the standard Ubuntu tools for application maintenance (apt-get, Synaptic package manager, etc...). Now, what's the real benefit for us? —  Fabrizio Giudici
  (Apr 24, 2007)

David Herron: Open, community developed, test suite for Java

Robert Burrell Donkin (JCP: Time For An OpenTCK) and Steve Loughran (Open tests for open standards) discuss their thoughts about an "Open TCK". These are interesting thoughts .. ones that make it tempting to conclude that there must be an... —  David Herron
  (Apr 24, 2007)

Jon Masamitsu: Get What You Need

As we all know by now GC ergonomics exists to automatically adjust the sizes of the generations to achieve a pause time goal and/or a throughput goal while using a minimum heap size. But sometimes that's not what you really want. I was talking to a user recently who was using java.lang.Runtime.totalMemory() and java.lang.Runtime.freeMemory() to monitor how full the heap was. The intent was ...

(Apr 23, 2007)

Naoto Sato: Ubuntu 7.04 「Feisty Fawn」

Ubuntuの新しいリリース、7.04 「Feisty Fawn」にJava 6が入っていると聞いていたんで、国際化関係はどうなっているのか興味がありました。ということで早速手持ちのEdgy EftをFeisty Fawnにアップグレード。そして下のエントリーにもあるLocale Demoを走らせてみました。

...

(Apr 23, 2007)

Naoto Sato: Ubuntu 7.04 (Feisty Fawn)

I know that Java 6 is included in the recently released Ubuntu 7.04 (Feisty Fawn), and am curious how they modify Sun's JDK6 in terms of internationalization. So I upgraded my Ubuntu from Edgy Eft to Feisty Fawn, grabbed the sun-java-6 package, and ran my locale demo...

...

(Apr 23, 2007)

Joshua Marinacci: Free Projects Part 4: an LCD Controller

My sincere apologies. I completely forgot to post the code from the last free project, sketch pad, so here it is. I also forgot that I have one more project to give away, one very different than anything else I've...

(Apr 11, 2007)

Felipe Gaucho: Ubuntu test-drive for Windows users.

Long time Windows' user being tempted by the news about Ubuntu 7.04 (Feisty Fawn) ? Let me show how you can try it without changing anything in your current machine configuration. —  Felipe Gaucho
  (Apr 22, 2007)

Kohsuke Kawaguchi: JAX-WS Spring support 1.4

As we close in on JavaOne, I've been making more progress on the Spring support. —  Kohsuke Kawaguchi
  (Apr 22, 2007)

Kirill Grouchnikov: Feisty Fawn, Sun's JDK and the latest Eclipse

Here is how you can install the latest Eclipse on Ubuntu 7.04 and make it use Sun JDK 6.0. —  Kirill Grouchnikov
  (Apr 23, 2007)

Calvin Austin: Java on Fiesty Ubuntu - will anyone notice?

Java is now part of the Ubuntu Feisty Fawn repositories but will the average user or developer even notice? —  Calvin Austin
  (Apr 21, 2007)

Matthias Ernst: Wieder Runterkommen

Blood pressure once again at 180. Just who wants to punish me...

(Apr 20, 2007)

Daniel Fuchs: How to retrieve JVM information using JRuby

A few weeks ago, I posted a small example showing how to programatically retrieve the JVM Management and Monitoring information. Jeff Mesnil also recently wrote a two parts blog article showing how to write a JMX client using JRuby. Piecing these two articles together I'm going to show how to prototype this using JRuby in jconsole Script Shell plugin.

(Apr 20, 2007)

Chet Haase: Don't Use getScaledInstance() (But Do Read Chris's Article on Why Not)

Chris has finally penned an article that I've had in mind for several years. Go read it. (Apr 20, 2007)

Tom Marble: Build on the Java Stack

Today I'm wearing my Ubuntu shirt because today is the day Feisty Fawn (7.04) has been released and it includes Sun's complete Java stack. For over a year we have been working aggressively to make our software available on Free Software distributions. It is easy to underestimate the complexity of the challenges involved. Last year when we worked in the DLJ license the Sun ...

(Apr 19, 2007)

Evan Summers: Encryptic

Like pretty much everything else we might ever need, the JDK supports password-based encryption (PBE). —  Evan Summers
  (Apr 19, 2007)

David Van Couvering: Keep Derby Open

Someone loves Derby so much they made a bumper sticker... —  David Van Couvering
  (Apr 18, 2007)

Getting the Bugs Out: A Conversation With Bug Fixer Brian Harry

Iowa developer Brian Harry, also known as "leouser" on java.net, is renowned for the bug fixes he contributed to Java SE 6, which number well into the hundreds and won him a Duke's Choice award for outstanding platform contributions in 2006... (Apr 18, 2007)

Kelly O'Hair (bsc): The Mercurial Mindset - Food for Thought

So I'm sitting in my office at home and I hear this noise in our Ornamental Pear tree outside. It's not a Mercurial user, just a squirrel, eating fruit from a fruitless tree. Why a fruitless tree is bearing fruit is beyond me, but the squirrel likes it. Hopefully the new Mercurial users will be as happy as Rocky here. ;^)

(Apr 18, 2007)

Elie Levy: Multithreaded Hash Table

If your application needs a "Hash Table" type of structure you have several options. This blog present some of them, and discusses the pros and cons of each. —  Elie Levy
  (Apr 17, 2007)

Tom Marble: less is more

From the thin-clients-are-back dept. we have the Neuf Box. Isn't it interesting that the entire offer is geared towards the consumer experience? Calls to the support line are free (with a three minute response time)! By designing the appliance on GNU/Linux they hope to avoid 80% of customer problems. This is the year that GNU/Linux makes significant advances over Windows on the desktop. Do ...

(Apr 04, 2007)

Mark Lam: Why choose Java?

Those of us who have worked with the Java platform tends to take its benefits for granted. However, to a developer who is new to the Java platform, the reasons to choose it may not be so obvious. This article will try to capture once again why the Java platform makes sense both from a technical and business perspective. However, I will talk about this from an embedded systems developer's perspective. —  Mark Lam
  (Apr 17, 2007)

Tom Marble: Sun Free Software in Brazil

Sun's Open Source team is all over Brazil this week at the FISL conference and next week at TechDays. In addition we are having several meetings with developers from industry, academia and government. The following Sun open source projects are represented: ...

(Apr 13, 2007)

Felipe Gaucho: SUN Tech Days @ Brazil

In this week there is a special date for several JUGs in Brazil, because on Thursday we'll have the SUN Tech Days happening down there. Probably the biggest SUN Tech Days in the world. —  Felipe Gaucho
  (Apr 17, 2007)

Evan Summers: Embedded Text via XML Annotations

I wouldn't mind XML in Java code for tidy multi-line string literals if nothing else. —  Evan Summers
  (Apr 16, 2007)

David Herron: Test suites and harnesses, continued

Last week I wrote a bit about the OpenJDK quality team we plan to launch, and about one of our primary concerns. We are pretty sure there are many people who would like to contribute to Open JDK quality, because... —  David Herron
  (Apr 13, 2007)

Kohsuke Kawaguchi: JAXB RI 2.1.3 release

The JAXB team is happy to announce the availability of the JAXB RI 2.1.3. —  Kohsuke Kawaguchi
  (Apr 13, 2007)

Cay Horstmann: Dr. Gafter comes to SJSU

I teach a graduate programming languages class at San Jose State University. In order to inject some topics of current interest, I had a lab about closures and the competing closure proposals for Java 7. I got an email from Neal Gafter: “Hey, it's really cool to see your reference to BGGA in a SJSU lab assignment!” I asked if he could give a talk at the department seminar, to which he graciously agreed. We had a packed room today. I am very excited that my students had a chance to witness a bit of history in the making. Here are my impressions of the talk. —  Cay Horstmann
  (Apr 13, 2007)

Peter von der Ahé: Who Needs a Java Compiler API?

I was recently interviewed by Jan for java.sun.com; where I said: Although most developers do not want to know how to use the Java Compiler API, it will provide a lot of indirect benefits. This was discussed on comp.lang.java.programmer, and I think it may have been misunderstood.

(Apr 12, 2007)

Fabrizio Giudici: Mac OS X 10.5 delayed to October: what about Java 6?

Apple has just posted bad news: the release of Mac OS 10.5 (Leopard) has been delayed to October. With the usual arrogance, Apple has never disclosed to Java developers its official plans about Java 6, but since the latest pre-release... —  Fabrizio Giudici
  (Apr 12, 2007)

John O'Conner: Top 10 Desktop Destinations at the 2007 JavaOne Conference

Plan ahead because you're going to need every spare moment to crunch it all in to your cranium. Schedule one of these Top 10 Desktop Destinations for the 2007 JavaOne Conference. —  John O'Conner
  (Apr 12, 2007)

Steve Goldman: Tiered Compilation - issues

I got a comment in my last entry about tiered compilation that I'd like to respond. It is more convenient (and obvious) to do it here. Here is the comment:

Can I try to understand better your "as it works now tiered tends to do too much compilation" comment? ...

(Apr 11, 2007)

Tom Ball: "Open Letter" or Extortion?

What is the Apache Harmony project's "Open Letter to Sun Microsystems" really about? The normal slimy marketing tactics we see every year right before JavaOne. —  Tom Ball
  (Apr 10, 2007)

Alexey Popov: One of the First Java Applications

Curious how much Java is a test-driven technology ? —  Alexey Popov
  (Apr 10, 2007)

Stephen Colebourne: Java Control Abstraction for First-Class Methods (Closures)

Stefan Schulz, Ricky Clarkson and I are pleased to announce the release of Java Control Abstraction (JCA). This is a position paper explaining how we envisage the First-Class Methods (FCM) closures proposal being extended to cover control abstraction.

(Apr 09, 2007)

Kohsuke Kawaguchi: annotaiton-mock-builder, JAXB2 annotation mocks, JAX-WS maven plugin, and Hudson release!

When java.net went down for the site upgrade, a lot of work has stopped in my "main" projects, since we couldn't commit changes. It turns out that that is precisely the kind of productivity time that I needed — I spent that time working on smaller projects that needed my attention. —  Kohsuke Kawaguchi
  (Apr 09, 2007)

Kirill Grouchnikov: Who doesn't want the transition effects in Swing applications?

Some minor thoughts about transition effects in Swing applications and the general lack of interest in them. —  Kirill Grouchnikov
  (Apr 09, 2007)

Konstantin Boudnik: Static analyzers comparison

Comparison of two popular static analyzers from Coverity and KlocWork The analysis has been done over popular Sun's Java Hotspot VM

(Mar 28, 2007)

Joshua Marinacci: Back from the demo

It was completely exhausting but it went quite well. Just to catch you up, last week I drove nine hours down to Santa Clara, CA to spend three days working on my demo then show it to the demo people.... —  Joshua Marinacci
  (Apr 09, 2007)

Kirill Grouchnikov: Non photorealistic rendering in Java - edge detection

Non-photorealistic rendering in Java, first step - edge detection —  Kirill Grouchnikov
  (Apr 08, 2007)

Chris Campbell: Faster Java 2D Via Shaders

More performance improvements in Java 2D's OpenGL backend... Lots of pretty bar charts included... —  Chris Campbell
  (Apr 08, 2007)

Ivan Tarasov: Unicode support in JRuby

I've been playing quite a lot with JRuby recently, reading its sources, writing cool scripts in it (I'm gonna post some here soon) and asking for help on JRuby developers mailing list. The reason why I needed to ask for help was a problem with Unicode support which I encountered: whenever I tried to pass a string with some Unicode characters across the Java-JRuby ...

(Apr 07, 2007)

Doug Kohlert: New JAX-WS 2.1 Specification available for review

A new version of the JAX-WS 2.1 specification is available for review at: https://jcp.org/aboutJava/communityprocess/maintenance/jsr224/index2.html —  Doug Kohlert
  (Apr 06, 2007)

Peter von der Ahé: One more interview

Since you are reading my blog you may also find Meet Peter von der Ah?, Tech Lead for javac at Sun Microsystems interesting. For now, the interview is on the front page.

(Apr 06, 2007)

Bill Snyder: Java desktop frameworks: Where are we headed?

Is Java desktop development at a crossroad? With the arrival of various frameworks over the past few years - how will they renew our approach to application development? —  Bill Snyder
  (Apr 05, 2007)

Andreas Sterbenz: Superpackage strawman and the JSR 294 mailing list

After a lot of internal discussion, Alex and I recently started the expert group discussion for JSR 294(Improved Modularity Support in the Java Programming Language). Not an earth shattering event, but what may make this interesting to you is that we decided to make the expert group discussion publicly readable via a web archive and an observer list that anyone can subscribe t ...

(Apr 06, 2007)

Arun Gupta: JAX-WS in Glassfish - way to go

Redirecting you to Joe Ottinger's (editor of The Server Side) blog. Technorati: jax-ws glassfish webservices —  Arun Gupta
  (Apr 05, 2007)

Bill Snyder: Java desktop frameworks: Where are we headed?

Is Java desktop development at a crossroad? With the arrival of various frameworks over the past few years - how will they renew our approach to application development? —  Bill Snyder
  (Apr 05, 2007)

Eamonn McManus: Cloning Java objects using serialization

Sometimes you need to clone objects, and sometimes you can't use their clone method, and sometimes serialization provides an alternative. Here's an explanation of when you might need this exotic and expensive technique, and how you can use it. —  Eamonn McManus
  (Apr 04, 2007)

Marina Sum: Java University Course Highlights

Courtesy of Joe Boulenouar, Java technical specialist at Sun. —  Marina Sum
  (Apr 04, 2007)

Dean Iverson: Beans Binding for Me? You Shouldn't Have.

Like any self-respecting evil genius, a new toy leads me to thoughts of world domination. What do you want do tonight? —  Dean Iverson
  (Apr 04, 2007)

Peter von der Ahé: JSR 199 Interview

Frank Sommers of Artima asked me a few questions about the Java Compiler API (JSR 199) and the Kitchen Sink Language: The Java Compiler API: A Conversation with Peter von der Ah?.

(Apr 04, 2007)

David Herron: Test suites and harnesses and tools

I want to put out to the listeners a question which we've been pondering in the nascent Open JDK Quality Team. This team is still a work in progress, and we are due to become public as part of the... —  David Herron
  (Apr 03, 2007)

John Ferguson Smart: Subversion support in NetBeans 5.5

NetBeans 5.5 now offers excellent Subversion support. —  John Ferguson Smart
  (Apr 03, 2007)

Vivek Pandey: Update to JAX-WS RI release

Since I posted my last blog there have been questions and concerns by our users about what's next? When is the new release going to be available? I indicated to be back in couple of weeks and I apologize it took more than that to get back with the dates for the next JAX-WS RI release. —  Vivek Pandey
  (Apr 03, 2007)

Dean Iverson: Swing Application Framework Hacks Unleashed For Smarty Pantses

Learn the Swing Application Framework in 21 Days! Actually, it only takes 1 day. —  Dean Iverson
  (Apr 02, 2007)

David Herron: Java Duchesses

In The Swiss Duke I wondered if there are other uses of the Duke mascot. I just stumbled across jduchess.org: Duchess is a networking group for female Java developers. We are based in the Netherlands, but every Java-coding girl can... —  David Herron
  (Apr 02, 2007)

David Herron: The Swiss Duke

I see on jazoon.com's blog The first ever Swiss Duke now on jazoon.com a variant of our beloved Duke wearing Swiss garb. They say: Jazoon, the international conference on Java™ technology, brings together experts and professional users of Java and... —  David Herron
  (Apr 02, 2007)

Gregg Sporar: Tracking Down Memory Leaks, Part 1

Have you seen an OutOfMemoryError while running your Java application? Not sure how to get started figuring out the cause? Sundar and I have just published an article that might be able to help. —  Gregg Sporar
  (Apr 02, 2007)

John O'Conner: Java SE 6 Update 1

Quietly sometime this past week, maybe even over the weekend, Java SE 6 Update 1 became available from the SE downloads site. The SE 6 Update 1 Release notes give the details of what changed. —  John O'Conner
  (Apr 01, 2007)

Joshua Marinacci: Back to the Bay

I'm heading back to the bay area this morning for a couple of days to take part in our annual Java One demo preview. This is when we each pitch our own Java One demos in a heated Java battle... —  Joshua Marinacci
  (Apr 01, 2007)

Alexander Schunk: 64Bit Software: A new Java Monopoly?

If you belong to those whow own a copy of Windows Vista 64 Bit you will notice that its hard to find software for this kind of operating system. At least the ones MS provides by itself. Looks like MS has opened a new market for 64 Bit ware and fortunately with Java 64 Bit runtime its possible to write 64 Bit apps that run on any 64 Bit system. —  Alexander Schunk
  (Apr 01, 2007)

Kirill Grouchnikov: Spring effects and widgets - now in Windows look and feel

Providing widgets, transition layout and image ghosting effects under Windows look and feel. —  Kirill Grouchnikov
  (Apr 01, 2007)

Stephen Colebourne: Closures - Outside Java

Trying to agree semantics for closures in Java isn't easy. Maybe we should look at what some other Java-like languages have done - Nice, Groovy and Scala.

(Mar 31, 2007)

Kohsuke Kawaguchi: Collecting container-specific instruction about how to run Hudson

Due to user demand, I started documenting how to install hudson.war on various containers. IMHO, that just shows the sorry state of the server-side Java portability. —  Kohsuke Kawaguchi
  (Mar 31, 2007)

John O'Conner: Working for the weekend

I know it's Friday, quitting time even, but I have to share one more thing before the weekend. —  John O'Conner
  (Mar 31, 2007)

Steve Goldman: Tiered Compilation almost live

A few days ago I putback the change that now causes the server jvm (32bit) to be built as tiered. It doesn't actually enable the jvm to run tiered by default but both compilers are present and you can optionally ask for tiered. I'm still having trouble tuning my multi-tiers jvm and I decided that at the very least I ought to see what ...

(Mar 30, 2007)

A. Sundararajan: Retrieving .class files from a running app

Many Java applications generate .class files on-the-fly at runtime. Some applications modify loaded Java classes either at class load time or even later using hotswap. Few examples: ...

(Mar 30, 2007)

Leonid Popov: JFileChooser on Windows Vista

Recently, Microsoft released Windows Vista, their new operating system, and almost simultaneously Sun released Java 6. Unfortunately, it turns out that some of the features in JFileChooser do not work properly on Vista. This article discusses these problems and proposes solutions. —  Leonid Popov
  (Mar 30, 2007)

Alexander Schunk: Getting rid of AWT?

If you are developing GUI applicatioins with Java you know there are two "rivaling" APIs to do this. There is AWT on one side and Swing on the other. This Blog gives some suggestions on getting rid of AWT and using Swing only for development. —  Alexander Schunk
  (Mar 30, 2007)

Eamonn McManus: Getting rid of unchecked warnings for casts

If you've ever made a serious effort to get rid of "unchecked" warnings from the Java compiler (the ones it gives you with -Xlint:unchecked) then you'll probably have found some cases where you know a cast is correct but you can't convince the compiler of it. Is there anything better than adding @SuppressWarnings("unchecked") around the whole method? —  Eamonn McManus
  (Mar 30, 2007)

Konstantin Boudnik: Software reliability

I hope this article will help to scratch issues of software reliability. Brief discussion about established reliability practices and what has to be changed.

(Mar 30, 2007)

Arun Gupta: Web Services Security Blogs

Manveen works on XML Web Services and Security and is now blogging. Welcome to the blogosphere! She has already posted three entries this week: XWSS on Maven On configuring Glassfish keystores Converting an existing webservice to one using the JSR109 deployment... —  Arun Gupta
  (Mar 30, 2007)

Kohsuke Kawaguchi: JAX-WS "Ask the experts" log and launching "JAX-WS Guide"

JAX-WS "Ask the experts" session log is now online, and also we launched the JAX-WS Guide.

(Mar 29, 2007)

Neal Gafter: Closures for Organizing Your Code

Much of the discussion of Closures in Java has been about they way they affect public APIs. But there is another aspect that is just as important: the way closures affect private APIs between parts of your program. Closures often enable a tremendous simplification of a program design compared to what would be required in their absence. The following describes my implementation of a ...

(Mar 29, 2007)

John O'Conner: International Domain Names

The internet's core infrastructure, including domain name servers and name resolvers just doesn't handle non-ASCII characters very well. That's why java.net.IDN is so useful. —  John O'Conner
  (Mar 29, 2007)

Matthias Ernst: Oh those swedish product names

This one might not sell as good.

(Mar 28, 2007)

Marina Sum: Blog Postings on Asian Languages and Localization

Courtesy of Stacy Thurston, community advocate for Sun Learning Services. —  Marina Sum
  (Mar 28, 2007)

Kohsuke Kawaguchi: JAX-WS Spring support 1.2 released

Just posted version 1.2 of the JAX-WS Spring support extension. —  Kohsuke Kawaguchi
  (Mar 28, 2007)

Jean-Francois Arcand: The bear is growing: Grizzly 1.5 Architecture Review

The Grizzly community is currently discussing the first official release of 1.5.0. We gonna do an extensive architectural review Thursday 03/29. Everybody interested can join the call and influence the future of the animal! —  Jean-Francois Arcand
  (Mar 28, 2007)

Lance Andersen: More JDBC 4.0 drivers are now available
The number of available JDBC 4.0 drivers is continuing to expand. —  Lance Andersen

Evan Summers: Screen Capture

We might provide built-in support in our application for capturing an image of the whole screen, or a specific component eg. JPanel, or our JFrame with its window decoration, via a screen capture keystroke. —  Evan Summers
  (Mar 28, 2007)

A. Sundararajan: Java Integration: JavaScript, Groovy and JRuby

When using scripting and dynamically typed languages with Java platform, you would want to take advantage of Java platform API. We know that there is Java API for (nearly) everything under the "Sun" . In this blog entry, we will see how to access Java from JavaScript, Groovy and JRuby.

(Oct 06, 2006)