with loadtime weaving aop alters the class before its being loaded by the classloader. so im guessing that eclipse is reacting because the class is not the "same" as it was when it was compiled. with compile time weaving there is not altering of the code in runtime, try it and see if that works better. - again, im not sure, just "guessing" :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4130946#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...