Planet JDK

Donald Smith: #OpenJDK interview in Java Magazine – direct link, no reg required.

2012-05-16T16:31:49Z

I saw a few comments about the OpenJDK Interview I did in the most recent Java magazine, and some concern friends raised that it’s a “register to read” publication. I highly recommend Java magazine to anyone in the Java Community, … Continue reading →

Dalibor Topić: Next Gig: LinuxTag on May 23rd & 24th

2012-05-16T11:20:15Z

I'll be speaking at LinuxTag in Berlin, Germany on JDK 7 Updates in OpenJDK. When I'm not speaking, I'll be mostly be around at the Oracle booth on Wednesday & Thursday.See you there!

Dalibor Topić: QotD: Donald Smith on Community Stars in OpenJDK

2012-05-16T10:40:34Z

Donald Smith, Director of Product Management in the Java Platform Group at Oracle, in an interview for the latest edition of the Java Magazine.

Andrew Hughes: IcedTea6 1.10.7 & 1.11.2 Released!

2012-05-14T12:56:22Z

The IcedTea project provides a harness to build the source code from OpenJDK6 using Free Software build tools, along with additional features such as a PulseAudio sound driver and support for alternative virtual machines. A new set of releases is now available for IcedTea6, which uses OpenJDK6 as its base: IcedTea6 1.10.7 (based on OpenJDK6 [...]

Dalibor Topić: OpenJDK 7u4 Source Code Bundle Published

2012-05-12T11:51:56Z

As Edvard Wendelin announced on the jdk7u-dev mailing list, the source code bundle corresponding to the JDK 7 Updates jdk7u/jdk7u4 Mercurial forest is now available for download.Happy packaging!

Dalibor Topić: QotD: Linus Torvalds on GitHub Pull Requests

2012-05-12T11:10:11Z

Linus Torvalds commenting on a GitHub pull request to the Linux kernel.

James Gosling: ForgeRock is hiring

2012-05-11T17:07:45Z

The folks at ForgeRock are hiring. They do development and support of the OpenDS/OpenAM/OpenIDM open source identity management products that had been the latest versions of the Sun Identity Manager. It's heavily ex-Sun folks. They've been around since Sun disappeared, but they just recently got funding to allow them to expand. The current employees are distributed all over the place. They have a new ...

Donald Smith: One year back at Oracle and my first year of #openjdk

2012-05-11T15:38:55Z

Today marks the end of exactly one year since I started back at Oracle, working on OpenJDK and other things. It’s been a heck of a year, and a lot has changed. Many things I thought would be hard, turned … Continue reading →

Jeroen Frijters: Using MethodRental.SwapMethodBody to do Method Level JIT Compilation

2012-05-11T10:24:32Z

IKVM.NET has always had a class granularity JIT. Whenever a type is first "used" the CLR fires the AppDomain.TypeResolve event and at that point the IKVM.NET runtime compiles the Java bytecode to CIL for all of the methods in the class.

Dalibor Topić: QotD: Alan Bateman on Project Jigsaw Preview Builds

2012-05-10T22:06:45Z

Alan Bateman in a post to the jigsaw-dev mailing list.

Mark Wielaard: FSF statement on jury’s partial verdict in Oracle v Google

2012-05-10T07:46:43Z

Were it grounded in reality, Oracle’s claim that copyright law gives them proprietary control over any software that uses a particular functional API would be terrible for free software and programmers everywhere. It is an unethical and greedy interpretation created with the express purpose of subjugating as many computer users as possible, and is particularly [...]

Fabien Duminy: Devoxx France 2012 – Java Caching with Guava

2012-05-09T07:00:31Z

At Devoxx France 2012, I attended to conference titled Java Caching with Guava presented by Charles Fry. The Guava Cache library works one level above ConcurrentHashmap but doesn’t offer as much features as Ehcache. Guava caches aren’t pre-loaded by default and are all thread safe. The loading of a cache is done with an implementation [...]

Dalibor Topić: QotD: Claus von Riegen on SAP & OpenJDK

2012-05-08T21:20:11Z

Claus von Riegen, Vice President Industry Standards and Open Source at SAP, in a blog post titled Protecting the future of Java.

Dalibor Topić: Next Gig: JUG Karlsruhe on Wednesday, May 9th on JDK 7 Updates & JDK 8

2012-05-08T21:10:46Z

I'll be speaking at JUG Karlsruhe on Wednesday, May 9th on JDK 7 Updates and JDK 8.See you there!

Donald Smith: Diversity in Action – #OpenJDK PowerPC ports proposed by SAP and IBM

2012-05-08T17:36:42Z

Volker Simonis, from SAP, posted to the OpenJDK-Discuss mailing list yesterday a proposal to start a project for PowerPC ports (AIX/Linux) in OpenJDK, driven jointly with IBM. I think the technical and community benefits of this are self evident – … Continue reading →

Roman Kennke: How to use Cacio-tta with FEST for Java GUI testing

2012-05-08T09:20:12Z

Now that Cacio is finally released and promoted to Maven central repositories, I want to provide you a quick HOWTO about testing user interfaces. For writing GUI tests, I am using FEST. However, one problem with running GUI tests is that they need to create windows, grab keyboard focus, and do all sorts of interaction [...]

Fabien Duminy: Devoxx France 2012 – CRaSH a shell to extend the Java platform

2012-05-08T07:00:48Z

During Devoxx France 2012, I attended the conference titled CRaSH a shell to extend the Java platform, presented by Julien Viet (his github account). CRaSH (Common ReusAble SHell) is a shell in the form of a command line interpreter allowing access to the Java virtual machine running it. This shell, under the LGPL open source [...]

Fabien Duminy: Devoxx France 2012 – Bytecode manipulation

2012-05-07T07:00:28Z

During Devoxx France 2012, I attended the conference titled Bytecode manipulation : democratize black magic, presented by Julien Ponge (his github account) and Frédéric Le Mouel. Among libraries manipulating bytecode, there are EJB containers, terracota to distribute computations and hibernate. The eclipse plugin managing layout and display of Android screens also manipulates bytecode to instrument [...]

Dalibor Topić: PodFodder: Henrik Ståhl on 7u4

2012-05-04T10:54:25Z

In the last episode of the Java Spotlight podcast, we interviewed Henrik Ståhl, Senior Director of Product Management in the Java Platform Group at Oracle on the latest release of Java SE 7.As usual, you can grab just this episode or fetch the whole feed.

Jeroen Frijters: New Development Snapshot

2012-05-04T06:58:49Z

This should hopefully be the last snapshot based on OpenJDK 7 FCS as 7u4 has shipped and the bundle should be available soon. After that I'll start work on integrating 7u4 and working towards the IKVM 7.1 release.

Fabien Duminy: Devoxx France 2012 – Android, Graphism and Performance

2012-05-03T07:00:34Z

At Devoxx France 2012, I attended to the conference titled Android, Graphism and Performance presented by Romain GUY. To begin, Romain is speaking about threads in Android (subject that I am starting to know well) by saying us to not block the main thread, also known as UI thread because user interface operations must run [...]

Marcus Hirt: Why JCMD?

2012-05-03T05:57:10Z

One of the reactions to my recent blog on JCMD has been “But, why?”. It is a reasonable question – after all, the simple examples I added to the blog can be solved using existing tools (jps, jstack etc) in the bin folder of any recent JDK. The answer is that JCMD provides: A simple framework [...]

Roman Kennke: Caciocavallo 1.1 released

2012-05-02T21:05:09Z

I am very proud to announce that after 4 years of development, we publish the first release of Caciocavallo. Due to some funny problems with Maven and my network, it is numbered 1.1. Cacio started out in 2008 as one of ten projects to take on the OpenJDK Innovators Challenge. This is how it all [...]

Henrik Ståhl: Moving to Java 7 as default

2012-05-02T17:13:41Z

Back in February, I wrote a post on this blog stating that the End Of Life (EOL) of public support and public releases for JDK 6 was extended to November 2012, to allow for some more time for the transition to JDK 7. As part of the updated EOL policy, EOL for public support and fixes for Java SE will typically occur no earlier ...

Fabien Duminy: Devoxx France 2012 – Seren, serialization under steroids !

2012-05-02T07:00:40Z

At Devoxx France 2012, I attended to conference titled Seren, serialization under steroids ! presented by Olivier Croisier, who animates the codersbreakfast site. Seren, meaning SERialization ENhancer, is a free software allowing to speed up serialization of Java objects. It can, for example, be used for a faster persistance of objects in Ehcache or to [...]

James Gosling: Comments around Oracle v Google

2012-05-01T21:06:35Z

There's been a lot of chatter about the Oracle v Google case, sometimes putting words into my mouth. I can't go into much detail because it is an ongoing court case where I'm likely to be a witness. But there are a few points I feel I should restate that have been said before: ...

Fabien Duminy: Devoxx France 2012 – Deadlock Victim

2012-04-30T07:00:20Z

For the conference titled Deadlock Victim at Devoxx France 2012, Heinz Kabutz and Olivier Croisier were talking about the DeadLock subject. By taking the dining philosophers problem as example, they show us that an inappropriate strategy can lead to a DeadLock. In the case of a database, the engine chooses the deadlock victim by returning [...]

James Gosling: My attitude on Oracle v Google

2012-04-29T04:10:28Z

[ Update: he fixed the article to put me on the same side as Scott ] ...

Dalibor Topić: Seven By Default

2012-04-27T22:02:15Z

On Java.com:In Fedora 17: In Ubuntu 12.10:At Jelastic:

Marcus Hirt: Cool New Features in JDK7 update 4!

2012-04-27T09:53:01Z

JDK7 was quite recently released, and I thought I should mention a few new cool things in it. JCMD First out is the port of the small JRockit command line utility JRCMD (JRockit Command). JRCMD was a command line tool to enumerate the Java processes running on the local machine, and to send commands (referred to [...]

Henrik Ståhl: Oracle JDK and JavaFX SDK now GA on Mac OS X

2012-04-26T23:41:58Z

Oracle JDK 7 and the JavaFX 2.1 SDK are now available for Mac OS X. This release is a major milestone in our effort to bring Oracle Java to Mac. From this point on, every release of Oracle JDK 7 and JavaFX 2.1 (and later) will be available on Mac at the same time as for Linux, Windows and Solaris.

Dalibor Topić: QotD: Ubuntu 12.04 Release Notes on OpenJDK 7

2012-04-26T16:53:20Z

Taken from the Precise Pangolin release notes.

Dalibor Topić: Next Gig: JavaOne India on May 3rd & 4th in Hyderabad

2012-04-26T16:36:51Z

I'll be speaking at JavaOne India next week in a couple of sessions.See you there!

Dalibor Topić: OpenJDK in The News: Oracle Releases Java SE 7 Update 4 and JavaFX 2.1

2012-04-26T16:24:36Z

Taken from an Oracle press release titled "Oracle Releases Java SE 7 Update 4 and JavaFX 2.1".

Fabien Duminy: Get Android sources before version 4 (ICS)

2012-04-26T07:00:02Z

If, like me, you are developing under an Android version older than version 4 (also named Ice Cream Sandwich or ICS), you must have seen the SDK Manager doesn’t propose you to get the sources. In fact, it’s possible to manually download them. For that purpose, you must go to the grepcode site, where one [...]

Fabien Duminy: In which thread do I have to execute this code under android ?

2012-04-25T07:00:45Z

While I was developing under android, I discovered 3 exceptions thrown by android to indicate execution of code in the wrong thread. The first case is about execution of a request with the apache HTTP client, provided with android. The android documentation advice to use the AsyncTask class for long tasks, in order to avoid [...]

Marcus Hirt: Remote JRCMD for JRockit R28.x

2012-04-24T14:02:23Z

On popular demand, here is how write a remote JRCMD for R28.x: import java.lang.management.ManagementFactory; import java.net.MalformedURLException; import java.util.HashMap; import java.util.Iterator; import java.util.Map; import javax.management.Attribute; import javax.management.InstanceNotFoundException; import javax.management.MBeanAttributeInfo; import javax.management.MBeanServerConnection; import javax.management.ObjectName; import javax.management.remote.JMXConnector; import javax.management.remote.JMXConnectorFactory; import javax.management.remote.JMXServiceURL; /** * Simple code example on how to execute * ctrl-break handlers remotely. * * Usage: * RemoteJRCMD -host -port -user -pass -command [] * * All arguments are optional. If [...]

Marcus Hirt: Speaking at Java One and Oracle Develop India!

2012-04-24T09:47:27Z

I will be presenting the following two sessions at Java One in Hyderabad next week: Thursday, May 3 Time Room Title Abstract Type 17:30-18:20 Hall 5 HotRockit: What to Expect from Oracle’s Converged JVM Oracle is converging the HotSpot and Oracle JRockit JVMs to produce a “best-of-breed JVM.” Internally, the project is sometimes referred to as the HotRockit project. This presentation discusses what to ...

Fabien Duminy: Processing an HTTP response with the apache client

2012-04-24T07:00:42Z

As I had to do an HTTP request under android, I started to write the following code using the apache HTTP client API (included in android) : After a problem, I discovered the server returned an http error 403 (access forbidden). So, I added the highlighted code below in order to manage the case it [...]

Jeroen Frijters: IKDASM - IL Disassembler Example for IKVM.Reflection

2012-04-23T14:54:40Z

A while ago I wrote an IL disassembler to test IKVM.Reflection. Both as a correctness test and also to test if the API surface exposes enough of the underlying information.