Adrian, As I was studying JBoss Reflect issues, I stumbled upon https://jira.jboss.org/jira/browse/JBREFLECT-6 and I got curious about it :) "adrian(a)jboss.org" wrote : The JavassistReflectionFactory builds up a source to compile the method, constructor and field accesors. | These implementations are faster than the normal reflection equivalents, but using the compiler is slow. | These methods should be optimized to generate the bytecode directly. | Currently, the whole Javassist API uses Java code and compiles that code for instrumentation. So, do you mean to extend Javassist API so it accepts bytecode instructions as an option over Java code? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4236862#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...