In the current joal-demos.jar SingleStaticSource is in a sub-package so it's easier to start with that jar than the class file.
java -classpath joal.jar;joal-demos.jar -Djava.library.path=. demos.devmaster.lesson1.SingleStaticSource
You need to look at javac's documentation and get a good feel for the -sourcepath, -classpath and -d options when compiling new code.
Everything is working fine with the OpenAL 1.1 SDK from http://openal.org/
. All of the new entry points are exposed in the current JOAL build.