OpenJDK is an open-source implementation of the Java Platform, Standard Edition.
Much of the OpenJDK code is licensed under the GPL version 2 with the
Classpath exception. The Java Hotspot virtual machine source code is
licensed under the GPL version 2 only.
The JavaHelp system is an online help system that developers can use to
add online help to their Java platform applications. The JavaHelp system
is both a JCP specification (JSR 97) and a reference implementation of
that specification. The JavaHelp system open source project includes the
source to the reference implementation.
The Java Chart Constuction Kit (JCCKit) is a small (< 100Kb) Java library and a
very flexible framework for creating scientific charts and plots.
The main purpose is to provide a flexible kit for writing Java applets and
application with the need for visualizing scientific data. If you are looking
for a lean scientific chart and plot library without all the unwanted bells and
whistles of the heavy competitors try JCCKit.
The key features of JCCKit are:
* small (< 100Kb jar file)
* highly configurable due to a sophisticated configuration concept
* extensible (1/3 of all classes are interfaces or abstract classes.)
* automatic updating if data changes
* easy programming of dynamic charts and plots
* automatic rescaling if canvas size changes
* out-of-the-box applet for presenting static data on a web page without
Java programming
* automatically generates a legend
JGraphT is a free Java graph library that provides mathematical graph-theory
objects and algorithms. JGraphT supports various types of graphs including:
* directed and undirected graphs.
* graphs with weighted / unweighted / labeled or any user-defined edges.
* various edge multiplicity options, including: simple-graphs, multigraphs,
pseudographs.
* unmodifiable graphs - allow modules to provide "read-only" access to
internal graphs.
* listenable graphs - allow external listeners to track modification events.
* subgraphs graphs that are auto-updating subgraph views on other graphs.
* all compositions of above graphs.
Although powerful, JGraphT is designed to be simple. For example, graph vertices
can be of any objects. You can create graphs based on: Strings, URLs, XML
documents, etc; you can even create graphs of graphs!
This is jikes, a java source to byte-code compiler. The compiler has been
made available by IBM under their open-source license, please see:
for details. To operate, the CLASSPATH environment variable must typically
be set to a colon-delimited list of source directories, class directories,
or zip files. Note that jikes will complain if a non-existant directory or
file is specified in CLASSPATH.
===============
// This software is subject to the terms of the IBM Jikes Compiler Open"
// Source License Agreement available at the following URL:"
// http://www.ibm.com/research/jikes."
// Copyright (C) 1996, 1998, International Business Machines Corporation"
// and others. All Rights Reserved."
// You must accept the terms of that agreement to use this software."
JODE is a java package containing a decompiler and an optimizer for
java. This package is freely available under the GNU GPL. The bytecode
package and the core decompiler is now under GNU Lesser General Public
License, so you can integrate it in your project.
Can be used from command line or through the Swing-based GUI.
The decompiler reads in class files and produces something similar to
the original java file. Jode has support for all constructs of JDK-1.3
including inner and anonymous classes.
The optimizer transforms class files in various ways with can be
controlled by a script file. It supports the following operations:
. Renaming class, method, field and local names to shorter,
obfuscated, or unique names or according to a given
translation table
. Removing debugging information
. Removing dead code (classes, fields, methods) and constant
fields
. Optimizing local variable allocation
OpenJDK is an open-source implementation of the Java Platform, Standard Edition.
Much of the OpenJDK code is licensed under the GPL version 2 with the
Classpath exception. The Java Hotspot virtual machine source code is
licensed under the GPL version 2 only.
JXGrabKey is a jni library for easy use of global X11 hotkeys on
from Java.
An open-source implementation of the Java Platform, Standard Edition,
An open-source implementation of the Java Platform, Standard Edition,