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import java.lang.annotation.*;
@Retention(RetentionPolicy.RUNTIME)
@interface Colored { String color(); }
@Colored(color="yellow")
public class AtTarget1 {
public static void main(String[]argv) {
new AtTarget1().m();
}
@Colored(color="red")
public void m() {
System.err.println("method");
}
}
aspect X {
int adviceExecutions = 0;
before(Colored c): call(* *(..)) && !within(X) && @target(c) {
System.err.println(c.color());
adviceExecutions++;
if (!c.color().equals("yellow"))
throw new RuntimeException("Color should be yellow");
if (adviceExecutions>1)
throw new RuntimeException("Advice shouldn't be called more than once");
}
}
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