\begin{description}
  \item[compile] Compiles all java code in the source tree.  Places generated classes in the build directory.
  \item[dist] Generates jar files, suitable for running via java -jar {YOUR\_JAR}.  Places resulting jars in the dist subdirectory.
  \item[resolve] Resolves third-party dependencies.  Downloads all third-party dependencies to the lib directory.
  \item[javadoc] Generates javadoc for the source tree.  Places javadoc in the javadoc directory.
  \item[clean] Removes artifacts from old compilations / distributions.
\end{description}
View all available ant targets by running 'ant -projecthelp' in the directory containing build.xml.