Embedded Java

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Embedded Java at the Embedded World fair 2014 in Nuremberg
IS2T embedded Java solution at Embedded World exhibition 2014 in Nuremberg

Although in the past some differences existed between embedded Java and traditional PC based Java solutions, the only difference now is that embedded Java code in these embedded systems is mainly contained in constrained memory, such as flash memory. A complete convergence has taken place since 2010, and now Java software components running on large systems can run directly with no recompilation at all on design-to-cost mass-production devices (consumers, industrial, white goods, healthcare, metering, smart markets in general,...)

Recent developments in the field are

  • In 2014, EBV annonced JAKARTA : a hardware & software application Java platform ready for new areas of low cost Human Machine Interfaces based on FREESCALE KINETIS-L [1].
  • In October 2013, Renesas Electronics annonced providing Embedded Java for RX Microcontrollers [2].
  • In January 2013, STMicroelectronics announced full Java support for STM32 F3/F4-series microcontrollers STM32 and stm32java.
  • In March 2013, MicroEJ product line from IS2T for ARM Cortex-M (all RTOS), ARM Cortex-A (Linux, Integrity, VxWorks), ARM7-TDMI (all RTOS), ARM9 (Linux, Integrity), AVR32 UC3 (all RTOS), V850 (all RTOS).
  • Before 2012, the Squawk Virtual Machine, a JVM developed by Sun Microsystems and deployed as part of Project Sun SPOT.

Topology of the Core Java API[edit]

The core Java API.

In order for a software component to run on any Java system, it must target the core minimal API provided by the different API.

Java SE embedded[edit]

Java SE embedded is based on desktop Java Platform, Standard Edition.[1] It is designed to be used on systems with at least 32 MB of RAM, and can work on Linux ARM, x86, or Power Architecture, and Windows XP and Windows XP Embedded architectures.

Java ME embedded[edit]

Java ME embedded is based on the Connected Device Configuration subset of Java Platform, Micro Edition.[2] It is designed to be used on systems with at least 8 MB of RAM, and can work on Linux ARM, PowerPC, or MIPS architecture.

The offering of Java for embedded devices is growing fast with companies that provide Embedded Java virtual machines for ARM Cortex-M serie. Only 50KB of flash is needed and a few KB of RAM.

See also[edit]


  1. ^ "JAVA SE FOR EMBEDDED". Oracle Corporation. Retrieved 2011-09-04. 
  2. ^ "JAVA ME FOR EMBEDDED". Oracle Corporation. Retrieved 2011-09-04. 

External links[edit]