Description Ron Bodkin 2005-09-06 19:50:03 EDT

Sample input:

public class Main {
    public static void main(String args[]) {}
}

public aspect LoadTime {
    before() : execution(* main(..)) {
        System.out.println("load time weaving: running main");
    }
}

aspect BuildTime {
    before() : execution(* main(..)) {
        System.out.println("running main");
    }
}

In META-INF/aop.xml:
<aspectj>
    <weaver options="-proceedOnError"/>
    <aspects>
        <aspect name="LoadTime"/>
    </aspects>
</aspectj>

ajc -Xreweavable Main.aj BuildTime.aj
ajc LoadTime.aj

Then:
java Main
produces:
running main

java -javaagent:...\aspectjweaver.jar  Main
produces:
load time weaving: running main

So the load-time weaving has rewoven Main and prevented the original advice 
from running.
java