Goal is to walk through creating an Eclipse project here shortly.
The long and short of it is to make a Java project with client and procedure directories as source folders.
Then add the junit jar from /lib, any jars from $VOLTDB_HOME/lib, and the main VoltDB jar from $VOLTDB_HOME/voltdb to the build path.
Then it may be helpful to add a log4j properties setting in your JVM file and you probably want to set the minimum heap to a gig or so.
To use the utility classes InProcessVoltDBServer and SQLCommandHack (which allow you to run a small VoltDB server instance in process for unit tests or debugging) in your own project, the compile_utils.sh script is provided. It compiles and outputs VoltDBProcedureTestUtils.jar, which can be added to the build path in your own project.
MORE SOON!!!
Note from az3: In the fork, I'm trying to maven-ize the project. Currently tests fail, you can compile it via skipTests option.
mvn clean install -DskipTests