Using Eclipse's JDT Compiler in Project GlassFish
By pelegri on Jul 11, 2006
Tomcat 5.5 by default uses the Eclipse JDT Compiler instead of the javac from Sun's SDK and one of the requests on Project GlassFish has been to be able to use JDT for JSP compilation. Jan just modified Jasper to accomplish this; read the instructions from Jan's Blog Entry.
BTW, Kin-Man is, separatedly, working on allowing Jasper to use the Mustang standard javac API, which should give substantial performance improvements; stay tuned.