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Jlint will check your Java code and find bugs, inconsistencies and synchronization problems by doing data flow analysis and building the lock graph.

Apache Jakarta Commons Primitives provides a collection of types and utilities optimized for working with Java primitives (boolean, byte, char, double, float, int, long, short). Generally, the Commons-Primitives classes are faster, smaller and easier to work with than their purely Object based alternatives. Currently Commons Primitives is primarily composed of implementations of the java.util collections adapted for the primitive types.

The Cryptix JCE Provider is a cryptography plugin for Sun Microsystems' Java Cryptography Extensions (JCE) framework.

The Java VM wrapper provides a convenient system for switching between different Java VMs. It also provides symbolic links in ${PREFIX}/bin to allow the use of the Java executables without having to add the specific Java VM executable directories to the PATH environment variable.

The Spring Framework is the leading full stack Java/JEE application framework. Spring delivers significant benefits for many projects, increasing development productivity and runtime performance while improving test coverage and application quality.

The Spring Framework is the leading full stack Java/JEE application framework. Spring delivers significant benefits for many projects, increasing development productivity and runtime performance while improving test coverage and application quality.

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

NetRexx is a new human-oriented programming language, designed to be a simple, effective, and complete alternative to the Java language. With NetRexx, you can create applications and applets for the Java environment faster and more easily than by programming in Java. Using Java classes is especially easy in NetRexx, as the different types of numbers and strings that Java expects are handled automatically by the language. NetRexx classes and Java classes are entirely equivalent -- NetRexx can use any Java class (and vice versa). NOTE: Remember to add NetRexxC.jar to your Java CLASSPATH or NETREXX_JAVA environment. For formal details of the language, please see the NetRexx documentation at

GNU Trove: High performance collections for Java. The GNU Trove library has two objectives: 1. Provide "free" (as in "free speech" and "free beer"), fast, lightweight implementations of the java.util Collections API. These implementations are designed to be pluggable replacements for their JDK equivalents. 2. Whenever possible, provide the same collections support for primitive types. This gap in the JDK is often addressed by using the "wrapper" classes (java.lang.Integer, java.lang.Float, etc.) with Object-based collections. For most applications, however, collections which store primitives directly will require less space and yield significant performance gains.

XDoclet is a Java code generation engine. It enables Attribute-Oriented Programming for java. In short, this means that you can add more significance to your code by adding meta data (attributes) to your java sources. This is done in special JavaDoc tags. XDoclet will parse your source files and generate many artifacts such as XML descriptors and/or source code from it. These files are generated from templates that use the information provided in the source code and its JavaDoc tags. XDoclet lets you apply Continuous Integration in component-oriented development. Developers should concentrate their editing work on only one Java source file per component.