find out whats on your CFML engines classpath
There are 2 snippets of code which should work for other CFML engines but I've only tested on Railo as I am trying to get to the bottom of a Jar issue.
To see whats on your classpath you get check the following system property
<cfset sys = CreateObject("java", "java.lang.System")><cfloop list="#sys.getProperty("java.class.path")#" index="i" delimiters=":"> <cfoutput>#i#</cfoutput>
</cfloop>
If you want to know even more about your system then its worth looking at the following dumping all the properties via:
<cfdump var="#sys.getProperties()#">