Apache Maven

Key Features

* Superior dependency management including automatic updating, dependency closures (also known as transitive dependencies). * A large and growing repository of libraries and metadata to use out of the box. * Extensible with the ability to easily write plugins in Java or scripting languages. * Ant tasks for dependency management and deployment outside of Maven. * Model based builds: Maven is able to build any number of projects into predefined output types such as a JAR, WAR, or distribution based on metadata about the project, without the need to do any scripting in most cases. * Coherent site of project information: Using the same metadata as for the build process, Maven is able to generate a web site or PDF including any documentation you care to add, and adds to that standard reports about the state of development of the project. * Release management and distribution publication: Without much additional configuration, Maven will integrate with your source control system such as CVS and manage the release of a project based on a certain tag. It can also publish this to a distribution location for use by other projects. * Dependency management: Maven encourages the use of a central repository of JARs and other dependencies. Maven comes with a mechanism that your project's clients can use to download any JARs required for building your project from a central JAR repository much like Perl's CPAN.