Excelsior JET
| Developer(s) | Excelsior LLC |
|---|---|
| Initial release | 2000 |
| Final release | 15.3
/ November 22, 2018 |
| Written in | Modula-2, Oberon-2, Java, Scala, C++, Assembly |
| Operating system | Windows, macOS, and Linux |
| Platform | IA-32, AMD64 and ARM |
| Type | Ahead-of-time (AOT) native code compiler, runtime, and deployment toolkit for Java applications |
| License | EULA |
| Website | www |
Excelsior JET is a now-defunct 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[1] from Oracle, and a toolkit to aid deployment of the optimized applications. Excelsior JET was developed by Excelsior LLC, headquartered in Novosibirsk, Russia.
Overview[edit]
Excelsior JET passed the "official" test suite (TCK) for Java SE 8, and was certified Java Compatible on macOS and a number of Windows and Linux flavors running on Intel x86, AMD64/Intel 64 and compatible hardware. (The macOS version was 64-bit only.)
The Enterprise Edition supported the Equinox OSGi runtime at the JVM level, enabling ahead-of-time compilation of Eclipse RCP (Rich Client Platform) applications,[2][3] and version 7.0 added such support for Web applications running on Apache Tomcat.[4][5] Version 10.5 introduced a new garbage collector optimized for multi-core and multi-CPU systems[6]
Excelsior JET Embedded[7] implements the Java SE for Embedded technology in a very similar manner. The only major differences used to be in licensing and pricing, but as of the latest version Excelsior JET Embedded also supports ARM-based platforms.
Latest Release[edit]
Version 15 introduced incremental compilation for AMD64 and ARM targets and improved application performance across all platforms.
Product EOL[edit]
On May 15, 2019, Excelsior announced discontinuation of Excelsior JET in an e-mail to their customers[8] and next day also on their website.[9] Support was announced to be stopped and the engineering team to leave completely within only ~2 weeks ("early June 2019") and Website for downloads announced to be offline mid of June (within only ~4 weeks). At August 7, 2019, it was announced[10] Excelsior was acquired by Huawei.
See also[edit]
- GNU Compiler for Java (removed from GCC in October 2016[11])
References[edit]
- ^ "Java SE Licensees". Oracle Corporation. Archived from the original on July 17, 2012. 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. (28 November 2007). "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.
- ^ John K. Waters (11 Feb 2015). "JET Update Amps Garbage Collection". Application Development Trends.
- ^ William Wong (23 Jul 2012). "Java Tool Slims Down Embedded Runtime". Electronic Design. Archived from the original on 26 September 2012. Retrieved 12 September 2012.
- ^ "The magic of the Internet". Imgur. Retrieved 2022-08-16.
- ^ https://www.excelsiorjet.com/ Archived 2019-07-15 at the Wayback Machine on May 16, 2019
- ^ "Huawei acquires Russian developer Excelsior - report".
- ^ Tom Tromey (2 Oct 2016). "The Deletion of gcj".