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JVM Comparison

by Arturo Fernandez Montoro

Researched for implementing Java support in plug-ins. Sizes listed are download file sizes.

JVM Comments Linux Mac OS X Windows License GUI

GCJ

http://gcc.gnu.org/java

FSF, gcc@gcc.gnu.org
Java source code directly to native machine code. Most of the APIs specified by "The Java Class Libraries" Second Edition and the "Java 2 Platform supplement" are supported. Win32 using Cygwin project MinGW. GCJ is part of GCC. 4,505k - - GPL -

JamVM

http://jamvm.sourceforge.net/

Robert Lougher, rlougher@users.sourceforge.net
Full 1.2 spec. Small size. Only tested on Linux. 160k - - GPL -

JanosVM

http://www.cs.utah.edu/flux/janos/janosvm.html

janos-discuss@flux.cs.utah.edu
Based on Kaffe and KaffeOS 8,480k - - GPL -

Japhar

http://www.japhar.org/

japhar@hungry.com

866k - - GPL -

JJvm

http://www.geocities.com/john_garrison/jjvm.html

John Garrison, john_garrison@yahoo.com

1,53k - - Public Domain AWT

Kaffe

http://www.kaffe.org/

Jim Pick, jim@kaffe.org
Win32 support using Cygnus. Kaffe is not the best Java virtual machine for developing Java applications according to web site note 1,126k - - GPL -

Mono

http://www.go-mono.com/

mono-list@lists.ximian.com
It is possible to compile Java to .NET, as shown by the Microsoft J# compiler. Support for JVM is incomplete.
10,890k

[That's with samples, docs, and
everything. Miguel says it can be cut down to 2MB. --rsr]
- - GPL -

Sun

http://www.java.com
Fully Java2 compatible. 12,900k - - Proprietary AWT
Swing

Wonka

http://www.acunia.com/wonka

wonka-info@acunia.com
Fully Java2 compatible. 4,414k - - Wonka Public Licence AWT

Created December 8, 2003. Updated December 8, 2003. Questions to rower@movieeditor.com
License: Documentation written as part of the CinePaint project is released under the OSI MIT license (a BSD-style license) and copyright the original authors.

JVM	Comments	Linux	Mac OS X	Windows	License	GUI
GCJ http://gcc.gnu.org/java FSF, gcc@gcc.gnu.org	Java source code directly to native machine code. Most of the APIs specified by "The Java Class Libraries" Second Edition and the "Java 2 Platform supplement" are supported. Win32 using Cygwin project MinGW. GCJ is part of GCC.	4,505k	-	-	GPL	-
JamVM http://jamvm.sourceforge.net/ Robert Lougher, rlougher@users.sourceforge.net	Full 1.2 spec. Small size. Only tested on Linux.	160k	-	-	GPL	-
JanosVM http://www.cs.utah.edu/flux/janos/janosvm.html janos-discuss@flux.cs.utah.edu	Based on Kaffe and KaffeOS	8,480k	-	-	GPL	-
Japhar http://www.japhar.org/ japhar@hungry.com		866k	-	-	GPL	-
JJvm http://www.geocities.com/john_garrison/jjvm.html John Garrison, john_garrison@yahoo.com		1,53k	-	-	Public Domain	AWT
Kaffe http://www.kaffe.org/ Jim Pick, jim@kaffe.org	Win32 support using Cygnus. Kaffe is not the best Java virtual machine for developing Java applications according to web site note	1,126k	-	-	GPL	-
Mono http://www.go-mono.com/ mono-list@lists.ximian.com	It is possible to compile Java to .NET, as shown by the Microsoft J# compiler. Support for JVM is incomplete.	10,890k [That's with samples, docs, and everything. Miguel says it can be cut down to 2MB. --rsr]	-	-	GPL	-
Sun http://www.java.com	Fully Java2 compatible.	12,900k	-	-	Proprietary	AWT Swing
Wonka http://www.acunia.com/wonka wonka-info@acunia.com	Fully Java2 compatible.	4,414k	-	-	Wonka Public Licence	AWT