JamaicaVM
JamaicaVM is a runtime and development environment for building and running memory-safe realtime Java applications on embedded and mission-critical systems.
What JamaicaVM is
JamaicaVM is a runtime and development environment for building and running memory-safe realtime Java applications on embedded and mission-critical systems. It runs Java applications and libraries, along with bytecode-compatible languages such as Kotlin, Clojure, and Scala. The platform provides the reference implementation of the Realtime Specification for Java. Managed memory and deterministic memory management are intended to support memory safety and controlled timing behavior. Ahead-of-Time compilation can tune application speed and memory footprint, while compiled JAR files can still be loaded dynamically. Listed operating-system targets include Linux, QNX, and VxWorks, with x64 and AArch64 support for those systems and RISC-V support for Linux. Windows and macOS have aicas-serviced OpenJDK builds without realtime functionality. Development resources include an Eclipse plugin, manuals, release notes, and Java and RTSJ API references. JamaicaVM is part of aicas EdgeSuite and can work with JamaicaAMS for connected edge-device application management. Pricing is on request, and a trial is available.
Good
- Supports Java, Kotlin, Clojure, and Scala
- Reference implementation of Java RTSJ
- Ahead-of-Time compilation tunes speed and footprint
- Supports Linux, QNX, and VxWorks targets
- Trial available with configuration discussion
Watch out
- Windows and macOS builds lack realtime functionality
- RISC-V support is listed only for Linux
- Pricing and licensing require contacting aicas
Who it suits
It suits developers building Java-based embedded or mission-critical systems that need realtime behavior and managed memory. It is also relevant to teams using supported operating systems, processor architectures, or bytecode-compatible JVM languages.
Verdict
JamaicaVM focuses on realtime Java applications where predictable timing and memory safety matter. Check target operating-system and processor support with aicas before choosing a configuration.
Plans and prices
From JamaicaVM's own pricing page, checked 9 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| JamaicaVM | Priced on request | Licensing depends on target hardware and RTOS; contact aicas for licensing |
The facts
Each one read from JamaicaVM's own pages, with the date it was checked.
What it does
- Architecture limits
- The page says RISC-V is supported only on Linux and other operating-system and processor combinations are available on request.checked 9 Oct 2026
- Compilation
- Ahead-of-Time compilation can tune application speed and memory footprint, and compiled JAR files can still be loaded dynamically.checked 9 Oct 2026
- Desktop builds
- Windows and macOS are listed with aicas-serviced OpenJDK builds that do not include realtime functionality.checked 9 Oct 2026
- Development tools
- The product page provides a JamaicaVM Eclipse Plugin and links to manuals, release notes, and Java and RTSJ API references.checked 9 Oct 2026
- Evaluation
- aicas invites prospective users to request a trial and discuss their operating system, processor architecture, realtime requirements, and Java applications with an expert.checked 9 Oct 2026
- Guest architecture
- bothchecked 24 Sep 2026
- Integration
- JamaicaVM is part of aicas EdgeSuite and can work alongside JamaicaAMS for application management on connected edge devices.checked 9 Oct 2026
- Java support
- It runs Java applications and libraries and also supports bytecode-compatible languages such as Kotlin, Clojure, and Scala.checked 9 Oct 2026
- Languages
- It supports Java applications and libraries, as well as bytecode-compatible languages including Kotlin, Clojure, and Scala.checked 9 Oct 2026
- Licensing
- The JamaicaVM manual says evaluation versions are available and directs customers to contact aicas or a sales partner about licensing and target-specific copies.checked 9 Oct 2026
- Memory management
- Its managed memory and deterministic memory management are designed to support memory safety and controlled timing behavior.checked 9 Oct 2026
- Operating systems
- The page lists Linux, QNX, and VxWorks as supported targets; other operating system and processor combinations may be available on request.checked 9 Oct 2026
- Pricing
- The product page directs visitors to contact aicas to evaluate a suitable configuration and does not state a price.checked 9 Oct 2026
- Processor architectures
- The platform table lists x64 and AArch64 support for Linux, QNX, and VxWorks, and RISC-V support for Linux; other combinations are available on request.checked 9 Oct 2026
- Product
- JamaicaVM is a runtime and development environment for building and running memory-safe realtime applications on embedded and mission-critical systems.checked 9 Oct 2026
- Purpose
- JamaicaVM is a runtime and development environment for memory-safe, realtime Java applications on embedded and mission-critical systems.checked 9 Oct 2026
- Realtime
- JamaicaVM provides the reference implementation of the Realtime Specification for Java (RTSJ).checked 9 Oct 2026
- Use case
- The maker describes use in Siemens Simotion motion control, where Java code runs with hard realtime capabilities and a clock cycle below 125 microseconds.checked 9 Oct 2026
The company
- Company
- aicas GmbH was founded in Karlsruhe on 3 May 2001.checked 9 Oct 2026
- Headquarters
- Karlsruhe, Germanychecked 19 Oct 2026
Where it runs
- Host platforms
- Development host systems listed are Linux, Windows, and macOS; Windows and macOS builds are serviced OpenJDK builds without realtime functionality.checked 9 Oct 2026
Money
- Support and trial
- The page invites prospective users to discuss their operating system, processor architecture, realtime requirements, and Java applications with aicas, and offers a trial request.checked 9 Oct 2026
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