Ant Pretty Build is a tool to easily show and run Ant buildfiles directly from within a browser window. It consists of a single XSL file that will generate, on the fly, in the browser, from the .xml buildfile, a pretty interface showing project name, description, properties and targets, etc. sorted or unsorted, allowing to load/modify/add properties, run the whole project, or run selected set of targets in a specific order, with the ability to modify logger/logfile, mode and add more libs or command line arguments.
Checkstyle is a development tool to help programmers write Java code that adheres to a coding standard. Its purpose is to automate the process of checking Java code, and to spare humans of this boring (but important) task.
Checkstyle can be run via an Ant task or a command line utility.
Java code review tool. Performs automated code review. Contains 111 inspectors which check different aspects of code quality including coding standards, EJB, threading, …
ProGuard is a free Java class file shrinker and obfuscator. It can detect and remove unused classes, fields, methods, and attributes. It can then rename the remaining classes, fields, and methods using short meaningless names.
Removes unneeded imports. Formats your import sections. Flags ambiguous imports.