Has anyone had any success installing this?  I've followed the
instructions but when I get to the point where I need to build (ant -f
setup.xml)
I get this output:

Usage: java [-options] class [args...]
          (to execute a class)
  or  java [-options] -jar jarfile [args...]
          (to execute a jar file)

where options include:
   -client     to select the "client" VM
   -server     to select the "server" VM
   -hotspot     is a synonym for the "client" VM  [deprecated]
                 The default VM is client.

   -cp <class search path of directories and zip/jar files>
   -classpath <class search path of directories and zip/jar files>
                 A ; separated list of directories, JAR archives,
                 and ZIP archives to search for class files.
   -D<name>=<value>
                 set a system property
   -verbose[:class|gc|jni]
                 enable verbose output
   -version      print product version and exit
   -version:<value>
                 require the specified version to run
   -showversion  print product version and continue
   -jre-restrict-search | -jre-no-restrict-search
                 include/exclude user private JREs in the version
search
   -? -help      print this help message
   -X            print help on non-standard options
   -ea[:<packagename>...|:<classname>]
   -enableassertions[:<packagename>...|:<classname>]
                 enable assertions
   -da[:<packagename>...|:<classname>]
   -disableassertions[:<packagename>...|:<classname>]
                 disable assertions
   -esa | -enablesystemassertions
                 enable system assertions
   -dsa | -disablesystemassertions
                 disable system assertions
   -agentlib:<libname>[=<options>]
                 load native agent library <libname>, e.g.
-agentlib:hprof
                   see also, -agentlib:jdwp=help and
-agentlib:hprof=help
   -agentpath:<pathname>[=<options>]
                 load native agent library by full pathname
   -javaagent:<jarpath>[=<options>]
                 load Java programming language agent, see
java.lang.instrument

I don't know much about how ant works but it seems to me that there
must be a line in the xml that is trying to invoke the java command
without the correct options.