|Stable release||11.0 MP1 / December 7, 2015|
|Written in||Modula-2, Oberon-2, Java, Scala, C++, Assembly|
|Operating system||Windows, OS X and Linux|
|Platform||IA-32 and AMD64|
|Type||Ahead-of-Time (AOT) native code compiler, runtime, and deployment toolkit for Java applications|
Excelsior JET is a proprietary Java SE technology implementation built around an ahead-of-time (AOT) Java to native code compiler. The compiler transforms the portable Java bytecode into optimized executables for the desired hardware and operating system (OS). Also included are a Java runtime featuring a just-in-time (JIT) compiler for handling classes that were not precompiled for whatever reason (e.g. third-party plugins or dynamic proxies), the complete Java SE API implementation licensed from Oracle, and a toolkit to aid deployment of the optimized applications.
Excelsior JET has passed the "official" test suite (TCK) for Java SE 8, and is certified Java Compatible on OS X and a number of Windows and Linux flavors running on Intel x86, AMD64/Intel 64 and compatible hardware. (The OS X version is 64-bit only.)
The Enterprise Edition supports the Equinox OSGi runtime at the JVM level, enabling ahead-of-time compilation of Eclipse RCP (Rich Client Platform) applications, and version 7.0 added such support for Web applications running on Apache Tomcat.
Version 11 is mostly about the move to Java SE 8. JavaFX 8 is also supported.
Version 10.5 introduced a new garbage collector optimized for multi-core and multi-CPU systems
- "Java SE Licensees". Oracle Corporation. Retrieved 17 Jul 2012.
- Craig Wickesser (23 Jul 2009). "Commercial Java Compiler Protects Eclipse RCP Applications". InfoQ.
- Dana Blankenhorn (1 Aug 2008). "Excelsior JET from Russia, with love". ZDNet. Retrieved 22 May 2012.
- Brittain, Jason; Darwin, Ian F. "Section A.7. Excelsior JET". Tomcat: The Definitive Guide (Second ed.). O'Reilly Media, Inc. ISBN 978-0-596-10106-0.
- Cameron McKenzie (20 Apr 2010). "Forget the JOP. Just Compile Your Tomcat War Files into Native Code". TheServerSide. Retrieved 22 May 2012.
- William Wong (23 Jul 2012). "Java Tool Slims Down Embedded Runtime". Electronic Design.
- John K. Waters (11 Feb 2015). "JET Update Amps Garbage Collection". Application Development Trends.