Javahelp output
The "javahelp" transform type runs several additional Ant
targets after the XHTML process is completed in order to create control
files for JavaHelp output.
There are two primary targets in the Ant JavaHelp code.
dita.map.javahelp
creates all of the files needed to compile Javahelp, including a table of contents, sorted index, and help map file.compile.Java.Help
searches for a Javahelp compiler on the system; if found, it will compile the help project.