"adrian(a)jboss.org" wrote : | "adrian" wrote : If the code generation was moved to compile time (like xjc), then having | | already generated classes will obviously out perform the reflection used by JBossXBBuilder. | Fast jaxb parsers had been generated and compiled before the test run. Ok, so what is fast jaxb doing that it is 3 times slower on the first iteration (even though you have already pre-generated classes)? Is it parsing the xml schema or something? Are you comparing apples to apples? View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4257914#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...