OpenJPA is an implementation of the Java Persistence API (JPA) which can be used as a stand-alone POJO persistence layer, or it can be integrated into any EJB3.0 compliant container and many lightweight frameworks. In this interview, Patrick Linskey explains where OpenJPA came from, how it fits into the O/R Mapping space, the JPA specification, and future plans for OpenJPA.
A discussion in the JRuby space is resurfacing: Should the project move to Java 5. Is it worth breaking compatibility with Java 1.4? Using languages features like Annotations and Enums would be useful, as well as and not having to use a backport of the Concurrency libs. We look at the pros and cons.
The first GNU Classpath/Sun Java hybrids have begun to appear. The hybrids combine GNU Classpath with Java code that Sun has recently released under the GPL either to improve an existing project or to further the goal of having a completely Free JDK.
Yesterday, Geir Magnusson Jr., VP of Apache Harmony, wrote an open letter to Sun Microsystems expressing dissatisfaction with IP rights restrictions in the Java Compatibility Kit license and frustration over the lack of traction discussing the matter with Sun.
Sun于2006年11月13日宣布在GNU通用公共许可证第2版（GNU General Public License v2, GPLv2）下开放Java SE、Java ME以及 Glassfish的源代码，同时Sun发布了Java SE 7 HotSpot JVM、javac编译器和JavaHelp的早期构建版本。完全可构建的Java SE 7 JDK类库计划于2007年第一季度发布。关于Java管理模式的计划尚未宣布。
Dalibor Topic, lead Kaffe developer and Classpath contributor, was recently interviewed about the decision by Sun to open-source Java. He talks about how he is pleased with Sun's decision and how they're implementing it and how he thinks that Kaffe, GCJ, etc will continue to thrive.
Last week some publications alluded to an official response by IBM regarding open source Java. InfoQ got a copy from IBM, republished here. IBM is generally supportive of the move, but would have preferred the contribution be made to Apache Harmony or at least under an Apache compatible license.
Simon Phipps, Tim Bray and Mark Shuttleworth held a briefing on Monday inside the Second Life online virtual reality game. The speakers addressed a croud of about 40 real people seated infront of the stage, covering Java on Linux, forking, what Sun will do to prevent incompatible Java's, a Microsoft fork, Harmony, and why it took so long for Java to be open sourced.
Sun today announced that Java SE, Java ME, and Glassfish are being open source under the GNU General Public License version two (GPLv2) with Sun today releasing an early build of the Java SE 7 HotSpot JVM, the javac compiler, and JavaHelp. The fully buildable Java SE 7 JDK classlibraries will be available in Q1 2007. Plans for Java's governance model have not yet been announced.
Jean Elliot, Director of Product Marketing for the Java SE Platform at Sun, was interviewed to talk about where Java SE is now and where it is going. They discussed the current Java SE roadmap, with Java SE 6 due in December and Java SE 7 in 2008. Other topics included open sourcing Java SE and the end-of-life of Java SE 1.3.1.
OpenSSO is an open source access management software distribution that provides the means to build authentication, authorization, and session management for Java and web applications and web services. Sun will be basing the Sun Java System Access Manager product on OpenSSO.
Cameron Purdy, Rod Johnson, Bruce Snyder, Bruce Tate, Floyd Marinescu and Ari Zilka participated in an annual 'what is the future of enterprise java?' panel at the last TSS Symposium, which was just published in video by TSS. The panel covered hard issues such as 'will EJB 3 matter?', open source Java, web 2.0, scripting languages. Read InfoQ's summary.
GCJ is a portable, optimizing, ahead-of-time Java compiler. Fedora Core 4 was the first release to include a lot of Java code compiled with GCJ. This article by GCJ lead Tom Tromey explains the status of the GCJ project and how to use gcj to compile native RPMs on RedHat Fedora Core.
At Java One this week Sun said that open sourcing Java is no longer a question of whether, but how. This marks a different tone from previous years, perhaps the Apache Harmony project is succeeding in slowly turning Sun away into a different direction. Community reaction to the news has been mixed.