The Apache Jakarta Commons Project has posted the first release candidate of Commons Math 1.0, an open source library providing many mathematical functions for statistics, random data generation,
linear algebra, root finding,
interpolation,
erf, gamma and beta functions,
arrays, factorials,
complex numbers, distributions, matrices, and solving linear systems.
It looks like it covers most prctical math you might encounter at roughly the level of a typical undergraduate course in
mathematical methods for physics. Based on spot checks of the Complex class and the factorial function, this looks like pretty solid work. I don't see any of the usual mistakes I'm used to seeing in such classes. For instance, the MathUtils.factorial() method throws an
ArithMeticException if the result overflows the bounds of a long.
Commons Math is published under the Apache 2.0 license.
The Gnu Project has released version 3.4.2 of GCC,
the GNU Compiler Collection.
GCC contains frontends for C, C++, Objective C, Chill, Fortran, Ada, and Java as well as libraries for these languages.
GCC is a clean room implementation of Java that doesn't use any Sun code,
so it doesn't always exactly match Sun release versions, but this is roughly at the Java 1.4 level with some omissions. 3.4.2 is a bug fix release. It isn't immediately obvious if any of the bug fixes apply to
the Java parts of the compiler but it looks like a few of them might.
The Apache Jakarta Commons Project has released JEXL 1.0. "Java Expression Language (JEXL) is an expression language engine which can be embedded in applications and frameworks. JEXL is inspired by Jakarta Velocity and the Expression Language defined in the JavaServer Pages Standard Tag Library version 1.1 (JSTL) and JavaServer Pages version 2.0 (JSP)." However, JEXL is not a compatible implementation of EL as defined in JSTL 1.1 and JSP 2.0.
ej-technologies has released Install4j 3.0.2, a $698 payware cross platform tool for building native installers and application launchers for Java applications. New features in 3.0.2 adds a couple of methods to the API.
YourKit, LLC has posted the seventh early access release of the YourKit Java Profiler 3.0, a 295€ payware tool for detecting memory leaks and memory consumption bottlenecks. It features Automation of memory leak detection, an object heap browser, JUnit integration, IntelliJ IDEA Borland JBuilder integration. Version 3.0 features a redesigned user interface including a new "Allocations HotSpots" view. It also allows you to see the merged call tree and back-traces for a method. The tool runs on Windows or Linux.
Slava Pestov has released
jEdit 4.2,
an open source programmer's editor written in Java with extensive plug-in
support and
my preferred text editor on Windows and Unix.
New features in 4.2 include:
- Drag-and-drop
- "Plug-ins can be loaded without quitting and relaunching jEdit.
- A new Utilities>Repeat Last Action command (shortcut: Control-Space) repeats the most recently invoked command."
- "34 new syntax highlighting modes were added, and many existing ones were enhanced. jEdit now supports syntax highlighting for 122 languages."
- More encodings supported
In my initial testing, it appears to have somewhat improved dialog focus. In previous versions, the failure to correctly focus dialogs like Find was responsible for a lot of mistyped text that ended up in windows other than the one it was intended for. However, there are still some dialogs like "No Matches Found" that don't properly get the focus when shown.
jEdit is published under the GPL. Java 1.3 or later is required.
Linus Tolke has posted ArgoUML 0.16.1, an open source UML modelling tool written in Java. This is a bug fix release. ArgoUML is published under a BSD license.
Jonas Bonér and Alexandre Vasseur have posted the first release candidate of AspectWerkz 1.0, an open source aspect oriented programming framework for Java, has been released. According to the web page, "AspectWerkz utilizes runtime bytecode modification to weave your classes at runtime. It hooks in and weaves classes loaded by any class loader except the bootstrap class loader. It has a rich join point model. Aspects, advices and introductions are written in plain Java and your target classes can be regular POJOs. You have the possibility to add, remove and re-structure advices as well as swapping the implementation of your introductions at runtime. Your aspects can be defined using either an XML definition file or using Runtime Attributes." AspectWerkz is published under an "LGPL-style license".
Michael B. Allen has posted jCIFS 0.9.8,
a free (LGPL) SMB client library written in pure Java. It
supports Unicode, named pipes, batching, multiplexing I/O of threaded callers, encrypted authentication, full transactions, domain/workgroup/host/share/file enumeration, NetBIOS sockets and name services, the smb:// URL protocol handler, RAP calls, and more. The API is similar to
java.io.File. Version 0.9.8 fixes a few bugs including one security bug.