Using the Professional JSP Site Design - Code Download reference, i am 
getting back next error message in my dosbox while using ant.

build.xml:9: taskdef class com.wrox.ant.ExtractTldTask cannot be found

The ExtractTldTask.class file is present in the JSPSite/com/wrox/ant 
directory. My build.xml and build.properties files are located in the 
JSPSite directory.