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Now that Java ME 8 is released a lot of people trying it out and are asking for sample code and demos. We’ve got you covered:
1) The first place you should go is the ”Java ME SDK 8 Developer Guide“. This is your one-stop-shop for getting started with Java ME 8 development on your PC (no external hardware required). Chapter 2 is “Creating a Java ME SDK 8 Sample Project”, and part IV is all about “Sample Applications”.
2) Next, you will want to browse the “Java ME Embedded Developer Guide”, which covers important topics for developing Java ME 8 embedded applications. Chapter 5 talks about “General Purpose I/O”, chapter 6 about “Working with the I2C Bus”, and chapter 7 about “The Serial Peripheral Interface (SPI) Bus”.
3) The Java ME SDK 8 comes with a whole set of ready-to-go demo applications. After installing the Java ME SDK 8 and NetBeans 8, start up NetBeans and make sure the “Java ME SDK Demos” plug-in is installed and active (this should be the default case). Then, create a new project and in the New Project dialog look under the “Samples > Java ME SDK 8.0” folder for a number of complete Java ME Embedded 8 demo projects.
4) Finally, check out the “Getting Started Guide (Raspberry Pi)” and the “Getting Started Guide (Qualcomm IoE)” for information on how to run apps on these platforms, including access to real-world peripherals via GPIO, I2C, SPI, UART, and others.
We are also working on additional demos and sample code – stay tuned for more information on this.
And remember to head over to the OTN Java ME Embedded forum to browse and ask questions – we are monitoring this forum on a regular basis.
Welcome to Java ME 8!
Today, we are announcing the general availability (GA) of the Java ME 8 release.
This release is the culmination of a two-year effort driving a major update of the Java ME technology as a modern embedded software platform, purpose-built as a foundation for new services in the Internet Of Things. We are closely collaborating with industry partners and are seeing strong interest and adoption in Java ME 8 across a number of markets such as wireless modules, automotive, smart sensors, healthcare, industrial automation, smart energy, logistics, and others.
Top 10 Features of Java ME 8
Java ME 8 has been designed to enable advanced embedded software intelligence and increased product value for a wide range of use cases and solutions while maintaining very low system requirements. Top 10 features include:
- Aligned with Java 8 for efficient development
- Designed for Embedded
- Highly portable and scalable
- Consistent across devices
- Advanced application platform
- Modularized software services
- Client domain partitioning
- Direct access to hardware devices
- Compatible with standard APIs
- Enhanced embedded tooling
For more information, please see the screencast “Java ME 8: Top 10 Features”.
What We Are Releasing Today
Todays release comprises of several of components:
Java ME 8 TCK (Technology Compatibility Kit) and RI (reference implementation):
- Java ME Connected Limited Device Configuration (CLDC) 8 (JSR 360)
- Java ME Embedded Profile (MEEP) 8 (JSR 361)
Oracle Java ME Embedded 8 product implementations and tooling:
- Oracle Java ME Embedded 8 product implementations for several embedded platforms (see below)
- Oracle Java ME SDK (Software Development Kit) 8 for embedded software development
Oracle Java Platform Integrator (OJPI) releases for Java ME Embedded 8:
- Enables Oracle partners to deliver value-add products and services based on Java ME Embedded 8 (OJPI information)
Support for the following platforms:
- Raspberry Pi Model B (based on ARM11/Linux)
- Qualcomm IoE Development Platform (based on ARM9/Brew MP)
- Windows x86 device emulation environment (for rapid prototyping/development)
We are also planning on bringing Oracle Java ME 8 to additional platforms such as micro-controller-based devices - please stay tuned.
Where to Find More Information
For more information, please see the following links:
- Oracle Java ME Embedded 8 data sheet
- Oracle Java ME SDK 8 data sheet
- “Java ME 8 Deep Dive” technical presentation
- Java 8 Launch screencasts on Java ME 8 on a variety of different technical topics
- Java Magazine March issue with several articles on Java ME 8
- Video interviews with Oracle executives and Oracle partners on Java Embedded and IoT topics
- General information on Oracle’s Internet of Things Platform, including videos, white papers, and brochures
Getting Started with Java ME 8
To get started developing with Java ME 8, download the Oracle Java ME SDK 8 which comes with a built-in Java ME 8 device emulation environment for rapid development plus great documentation to get you started.
Once you’re ready to move on to real hardware such as Raspberry Pi or the Qualcomm IoE platform, download the ready-to-run Oracle Java ME Embedded 8 platform binaries.
Go here for the full set of Oracle Java ME 8 documentation, including:
- Release Notes
- Getting Started Guides for all platforms
- ME SDK Developer Guide
- Java ME Embedded Developer Guide
- API documentation
Java ME 8 brings exciting new possibilities to the embedded software space. Get started today and stay tuned for more to come!
About 18 months ago we embarked on an ambitious journey to deliver a major update of the Java ME platform standard by filing JSR 360 (CLDC 8) and JSR 361 (MEEP 8) in the JCP (“JSR 360 and JSR 361: A Big Leap for Java ME 8”).
Both JSR 360 and JSR 361 were unanimously approved this week, with 25 YES votes each. Java ME 8 is now a reality, bringing the power of Java 8 to small embedded. Stay tuned for more announcements soon.
Here is the next Java ME 8 Developer Drop, b58. As before, this is provided “as is”, with no guarantees of stability or functionality.
To access, go to the EA #2 downloads page and look for “latest developer build”:
I just posted an expanded and updated Java ME 8 Deep Dive slide deck on SlideShare.
(apologies for the partially messed up colors and slides, SlideShare is going that during the conversion process ;-( )
The current March/April issue of Java Magazine is chock-full with embedded content:
- From Smart Grids to Microbrews: Using Java ME 8 to manage utilities infrastructure AND to brew beer
- Java ME 8 and the Internet of Things: Top features of Java ME 8
- New to Java? How to become and Embedded Java Developer in Minutes
- JavaFX and Near Field Communication on the Raspberry Pi
… along with lots of other great Java content, especially related to this week’s launch of Java 8.
PS: For more info on the beer-brewing use case, see the screencast “Developing Modular, Service-enabled Applications: Java ME 8” (go here and scroll down to see the screencast under the “Java ME 8” section).
Java Magazine is free, but requires registration. Enjoy!
Java 8 is officially launching today!
Along with todays live launch event there will be lots of new information available such as a set of brand-new screencasts:
Java ME 8 is a key part of the Java 8 launch and will be available soon. Until then, there’s plenty to get started – for example, the Java ME 8 Early Access. Or check out the new Java ME 8 screencasts:
- Be an Embedded Developer in Minutes using Java ME 8
- JSR 360 – CLDC 8: Benefits of an Optimized Implementation
- JSR 360 – CLDC 8: Java Platform for IoT
- JSR 360 – CLDC 8: Generic Networking APIs
- Unified Development Experience for Java ME 8 and Java SE 8
- Accessing H/W Devices using Java ME 8 Device I/O API
- Java ME 8: Top 10 Features
- Java ME 8: Tackling the Challenges of Embedded Software Design
- JSR 361 – MEEP 8: A New Java Profile for the Embedded World
- Developing Modular, Service-Enabled Applications with Java ME 8
Lots to learn. Exciting times.
I totally forgot to post this announcement by Gemalto and Qualcomm from CES. Yes, it’s a few weeks old, but it has not lost any of its relevance. Quite the opposite … with the Java ME 8 release coming up soon, the momentum is building:
“Gemalto launches next generation M2M product range adding Oracle Java ME 8 solutions capability based on chipsets from Qualcomm Technologies”
For more information, see the Gemalto press release.
Update 3/20/2014: Added notes for b54 drop.
As announced 2 weeks ago, we have started semi-regular developer drops of Java ME 8.
Developer Drop b54 was just pushed out today. As before, this is provided “as is”, with no guarantees of stability or functionality.
To access, go to the EA #2 downloads page and look for “latest developer build”:
Change of Device Access API in the b54:
- The Device Access API name and namespace has been changed to Device I/O (DIO) in preparation for the Java ME 8 final release. This requires that you update the package imports in your application. The latest DIO documentation can be found here.
Notes on changes for the Qualcomm IoE platform in b54:
- The previously separate Netsetup BrewMP application has been removed and the functionality has been integrated into the Java runtime. Network setup for WiFi/3G is now done as part of the Java runtime initialization.
- A new BrewMP application called reboot_java has been added. It is optional and can be used to trigger a soft reboot (Java reboot without board reboot).
- Network setup, AccessPoint API, and Cellular API functionality has been improved/made more complete.