Welcome!

IBM Cloud Authors: Liz McMillan, Pat Romanski, Yeshim Deniz, Carmen Gonzalez, Elizabeth White

Related Topics: Java IoT, IBM Cloud

Java IoT: Article

Java 5.0 - The "Tiger" Is Out of Its Cage

Java 5.0 - The "Tiger" Is Out of Its Cage

These days Calvin Austin is one of the busiest people in the Java world: J2SE 5.0, that was also known as the "Tiger" project, is being officially released today! 

Yakov Fain was able to catch Calvin right before the plane from San Francisco to New York where he'll be presenting the new features of the Java language to the New York Java Users Group.

JDJ: Please tell us about yourself and your role in the Tiger project

Calvin Austin: I'm the J2SE 5.0 Specification Lead, JSR 176 in the Java Community Process. The J2SE 5.0 expert group consists of 18 members including all the major industry partners and JVM porters.


JDJ:
What are the main new features of the language being introduced in J2SE 5.0?

Austin: Four main themes ran through the release.

  1. Ease of Development. These are the first significant updates to the Java language since 1.0 was released. The main ease of development features are generics, metadata, enhanced for Loop, enums, and autoboxing.
  2. Monitoring and Manageability Monitoring a JVM using JMX and SNMP protocols, enhanced diagnostics, a low memory detector.
  3. Performance and scalability. Faster startup time using class data sharing and automatically tuned server configurations, something we call "performance ergonomics."
  4. Desktop Client. A refreshed new cross-platform look-and-feel called Ocean. OpenGL hardware acceleration for intensive graphics apps.


JDJ:
You probably have received lots of different suggestions from the developers community about the "missing" features of the Java language. How did you make a decision?

Austin:
Generics received the popular vote, it was one of the top 20 "Requests For Enhancements" (RFE) on the Java developer connection site. All 20 RFEs were added as potential features. For the other language features the final decision was made in the respective JSRs, like JSR 201 and JSR 14. Sun was the spec lead for both those JSRs and so also involved James Gosling and others in the initial reviews.


JDJ: Large corporations usually switch to newer version of any programming language with substantial delays. What do you think is a major selling point of the new version Java?
 
Austin: One of the major selling points of this release is that you'll be able to slot in a 5.0 JRE to your application and benefit from the improved performance, monitoring, diagnostic tools, and reliability without changing a line of code. However there are also benefits in also recompiling and updating your source code. Using Generics, the compiler can alert you to runtime class cast exceptions, the concurrency API gives you the flexibility to re-write code to have improved thread safety.

JDJ: Did you run into any compatibility issues between Java 1.4 and Java 5.0?

Austin:
Running applications should be fine. The one thing developers need to watch for is that enum is now a keyword as the javac compiler language is 5.0 by default. This applies to the assert keyword that was added in 1.4


JDJ: Are there any performance improvements in the new version?

Austin:
Startup time is improved even though Tiger is a bigger release, server side benchmarks with performance ergonomics are greatly improved on machines with two or more CPUs.


JDJ: What are the benefits for fat client Java applications?

Austin:
Improved startup time, skinnable API (synth), reduced jar file sizes for downloading when using the pack API.


JDJ: Let's forget about the corporate world for a minute. What do you think is the coolest new feature of the language?

Austin: If I just restrict myself to the language it would be metadata (JSR 175). We've only scratched the surface of its potential. For the platform, it's a bytecode insertion for profiling (JSR 163).


JDJ: In some cases new features of a programming language not only improve the language, but also may change the style of programming in general. If you were a college professor or a Java trainer, would you teach your students using some new concepts of programming rather then building your training materials on top of existing ones?

Austin:
I haven't seen a recent course so it's difficult for me to comment. One example I can think of. For threading and synchronization, I would definitely recommend still spending a little time covering the basic Java monitors/synchronized blocks but dedicate more time to the concurrency API instead (JSR 166). It should reduce the number of threading errors introduced.


JDJ: The Tiger is out. What will the future releases of Java bring us?
 
Austin:
It is really is down to the Java community at this point to help define the release, I had no shortage of feature requests for 5.0 so most of the work was cutting that list to a manageable size (105 features). When the 6.0 JSR is submitted, users and developers can send comments and questions to the comment alias there.


JDJ: Calvin, thank you for taking the time and answering our questions! JDJ would love to ask more, but I've got to run - it's time to download J2SE 5.0 !!  

More Stories By Java News Desk

JDJ News Desk monitors the world of Java to present IT professionals with updates on technology advances, business trends, new products and standards in the Java and i-technology space.

Comments (0)

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


@ThingsExpo Stories
In this strange new world where more and more power is drawn from business technology, companies are effectively straddling two paths on the road to innovation and transformation into digital enterprises. The first path is the heritage trail – with “legacy” technology forming the background. Here, extant technologies are transformed by core IT teams to provide more API-driven approaches. Legacy systems can restrict companies that are transitioning into digital enterprises. To truly become a lead...
SYS-CON Events announced today that CAST Software will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. CAST was founded more than 25 years ago to make the invisible visible. Built around the idea that even the best analytics on the market still leave blind spots for technical teams looking to deliver better software and prevent outages, CAST provides the software intelligence that matter ...
SYS-CON Events announced today that Daiya Industry will exhibit at the Japanese Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Ruby Development Inc. builds new services in short period of time and provides a continuous support of those services based on Ruby on Rails. For more information, please visit https://github.com/RubyDevInc.
As businesses evolve, they need technology that is simple to help them succeed today and flexible enough to help them build for tomorrow. Chrome is fit for the workplace of the future — providing a secure, consistent user experience across a range of devices that can be used anywhere. In her session at 21st Cloud Expo, Vidya Nagarajan, a Senior Product Manager at Google, will take a look at various options as to how ChromeOS can be leveraged to interact with people on the devices, and formats th...
SYS-CON Events announced today that Yuasa System will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Yuasa System is introducing a multi-purpose endurance testing system for flexible displays, OLED devices, flexible substrates, flat cables, and films in smartphones, wearables, automobiles, and healthcare.
SYS-CON Events announced today that Taica will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Taica manufacturers Alpha-GEL brand silicone components and materials, which maintain outstanding performance over a wide temperature range -40C to +200C. For more information, visit http://www.taica.co.jp/english/.
SYS-CON Events announced today that SourceForge has been named “Media Sponsor” of SYS-CON's 21st International Cloud Expo, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. SourceForge is the largest, most trusted destination for Open Source Software development, collaboration, discovery and download on the web serving over 32 million viewers, 150 million downloads and over 460,000 active development projects each and every month.
SYS-CON Events announced today that Nihon Micron will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Nihon Micron Co., Ltd. strives for technological innovation to establish high-density, high-precision processing technology for providing printed circuit board and metal mount RFID tags used for communication devices. For more inf...
Enterprises have taken advantage of IoT to achieve important revenue and cost advantages. What is less apparent is how incumbent enterprises operating at scale have, following success with IoT, built analytic, operations management and software development capabilities – ranging from autonomous vehicles to manageable robotics installations. They have embraced these capabilities as if they were Silicon Valley startups. As a result, many firms employ new business models that place enormous impor...
SYS-CON Events announced today that MIRAI Inc. will exhibit at the Japan External Trade Organization (JETRO) Pavilion at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. MIRAI Inc. are IT consultants from the public sector whose mission is to solve social issues by technology and innovation and to create a meaningful future for people.
Widespread fragmentation is stalling the growth of the IIoT and making it difficult for partners to work together. The number of software platforms, apps, hardware and connectivity standards is creating paralysis among businesses that are afraid of being locked into a solution. EdgeX Foundry is unifying the community around a common IoT edge framework and an ecosystem of interoperable components.
SYS-CON Events announced today that Dasher Technologies will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Dasher Technologies, Inc. ® is a premier IT solution provider that delivers expert technical resources along with trusted account executives to architect and deliver complete IT solutions and services to help our clients execute their goals, plans and objectives. Since 1999, we'v...
SYS-CON Events announced today that TidalScale, a leading provider of systems and services, will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. TidalScale has been involved in shaping the computing landscape. They've designed, developed and deployed some of the most important and successful systems and services in the history of the computing industry - internet, Ethernet, operating s...
SYS-CON Events announced today that Massive Networks, that helps your business operate seamlessly with fast, reliable, and secure internet and network solutions, has been named "Exhibitor" of SYS-CON's 21st International Cloud Expo ®, which will take place on Oct 31 - Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. As a premier telecommunications provider, Massive Networks is headquartered out of Louisville, Colorado. With years of experience under their belt, their team of...
SYS-CON Events announced today that IBM has been named “Diamond Sponsor” of SYS-CON's 21st Cloud Expo, which will take place on October 31 through November 2nd 2017 at the Santa Clara Convention Center in Santa Clara, California.
Infoblox delivers Actionable Network Intelligence to enterprise, government, and service provider customers around the world. They are the industry leader in DNS, DHCP, and IP address management, the category known as DDI. We empower thousands of organizations to control and secure their networks from the core-enabling them to increase efficiency and visibility, improve customer service, and meet compliance requirements.
SYS-CON Events announced today that TidalScale will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. TidalScale is the leading provider of Software-Defined Servers that bring flexibility to modern data centers by right-sizing servers on the fly to fit any data set or workload. TidalScale’s award-winning inverse hypervisor technology combines multiple commodity servers (including their ass...
As hybrid cloud becomes the de-facto standard mode of operation for most enterprises, new challenges arise on how to efficiently and economically share data across environments. In his session at 21st Cloud Expo, Dr. Allon Cohen, VP of Product at Elastifile, will explore new techniques and best practices that help enterprise IT benefit from the advantages of hybrid cloud environments by enabling data availability for both legacy enterprise and cloud-native mission critical applications. By rev...
Join IBM November 1 at 21st Cloud Expo at the Santa Clara Convention Center in Santa Clara, CA, and learn how IBM Watson can bring cognitive services and AI to intelligent, unmanned systems. Cognitive analysis impacts today’s systems with unparalleled ability that were previously available only to manned, back-end operations. Thanks to cloud processing, IBM Watson can bring cognitive services and AI to intelligent, unmanned systems. Imagine a robot vacuum that becomes your personal assistant tha...
As popularity of the smart home is growing and continues to go mainstream, technological factors play a greater role. The IoT protocol houses the interoperability battery consumption, security, and configuration of a smart home device, and it can be difficult for companies to choose the right kind for their product. For both DIY and professionally installed smart homes, developers need to consider each of these elements for their product to be successful in the market and current smart homes.