Planet JDK

Roman Kennke: Shenandoah GC: An overview

2013-06-18T21:04:28Z

Let me give you a quick overview how the Shenandoah GC works. First of all, let’s look at the heap in Shenandoah. Shenandoah’s heap is basically (like all heaps) a big chunk of memory, and in Shenandoah it is divided into many regions. Consider a heap of 1 GB, and a region size of 1MB, […]

Jim Laskey: Follow up: Taming the Nashorn...AGAIN...

2013-06-17T15:20:37Z

Another great article from hansolo_ http://harmoniccode.blogspot.de/2013/06/taming-nashornagain.html .

Mario Torre: Font Awesome!

2013-06-15T19:04:56Z

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Jonathan Gibbons: Testing javac: more, faster

2013-06-14T14:51:03Z

Getting numbers is so much fun, and rarely fails to disappoint.

Roman Kennke: Shenandoah: A pauseless GC for OpenJDK

2013-06-10T21:04:18Z

It’s been quite a while that I did not post anything. The reason is that I was busy with a very interesting new project in the last weeks, Shenandoah, a new GC for OpenJDK. Christine, a collegue of mine in Red Hat’s Java team, set out to build a next generation garbage collector for OpenJDK. […]

Henrik Ståhl: TZUpdater for JDK 7 available (again)

2013-06-10T20:16:04Z

The Timezone Updater Tool (aka TZUpdater) is available for public download from OTN [1] again.

Andrew Hughes: IcedTea 2.4.0 Released!

2013-06-10T00:32:32Z

The IcedTea project provides a harness to build the source code from OpenJDK using Free Software build tools, along with additional features such as a PulseAudio sound driver and support for alternative virtual machines. This release is the next major release supporting OpenJDK 7. It is based on what will eventually become the upstream u40 [...]

Donald Smith: Quick note on Oracle Java SE Time Zone Updates #tzupdater

2013-06-08T20:48:41Z

As noted on a recent /. and TSS thread, some have noticed that a tool known as the Java SE Time Zone Updater (aka “TZUpdater”) is no longer publicly available. There seems to be some misunderstanding about the purpose of … Continue reading →

David Dice: Jam Jar Jet

2013-05-31T15:15:39Z

A simple working model of a valveless pulse jet engine inspired by an article in Make magazine. I found our worked better without the diffuser. Read the full article before you try this at home. Sometimes our blog systems does not allow embedded video, so just in case you can use this direct link.

David Dice: Scalable Statistics Counters

2013-05-31T14:54:49Z

Scalable Statistics Counters will appear in SPAA 2013.

David Dice: Lightweight Contention Management for Efficient Compare-and-Swap Operations

2013-05-31T14:34:18Z

"Lightweight Contention Management for Efficient Compare-and-Swap Operations" by Dave Dice, Danny Hendler and Ilya Mirsky will appear in Euro-Par 2013. A longer technical report is also available in arxiv.

Dalibor Topić: Food For Tests: 7u40 Build b26 & 8 Build b91

2013-05-30T18:45:54Z

This week brought new Early Access builds of the JDK and related projects.On the JDK 7 side, the JDK 7 Update 40 Early Access Releases have been updated to 7u40 Build b26. A list of changes is available here - this build updates HotSpot to hs24-b45 and upgrades JAXP to 1.5. On the JDK 8 side, the JDK 8 Early Access Releases Build b91 ...

Jeroen Frijters: Overriding a Final Finalize

2013-05-30T14:11:44Z

Compile the following code:

class Base {
  protected final void finalize() {
    System.out.println("Base.finalize");
  }
}
class Derived extends Base {
  private void fin_lize() {
    System.out.println("Derived.finalize");
  }
  public static void main(String[] args) {
    new Derived();
    System.gc();
    System.runFinalization();
  }
}

...

Jonathan Gibbons: javadoc TLC

2013-05-29T23:06:28Z

The recent series of patches¹ for javadoc completes the work started during JDK 7 to change the internal data model for standard javadoc doclets from strings to a document tree. As a result of this work, there should no longer be any unnecessary internal conversion from tree nodes to strings and back again.

Jim Laskey: Repost: Taming the Nashorn (first impressions)...

2013-05-29T14:34:22Z

import eu.hansolo.enzo.lcd.Lcd;
 ...