500 Servlet Exception

Resin can't load sun.tools.javac.Main.  Usually this means that the JDK
tools.jar is missing from the classpath, possibly because of using a JRE
instead of the JDK.  You can either add tools.jar to the classpath or change
the compiler to an external one with <java compiler='javac'/> or jikes.

java.lang.ClassNotFoundException: sun.tools.javac.Main

Resin 2.1.12 (built Tue Dec 9 14:58:25 PST 2003)