import java.lang.annotation.*; @Retention(RetentionPolicy.RUNTIME) @interface Colored { String color(); } public class PreInitBinding { public static void main(String[]argv) { new A(); new B(); new C(); X.verifyRun(); } } class A { @Colored(color="orange") public A() {} } class B { @Colored(color="yellow") public B() {} } class C { @Colored(color="brown") public C() {} } aspect X { // Expected color order static String exp[] = new String[]{"orange","yellow","brown"}; static int i = 0; // Count of advice executions before(Colored c): preinitialization(new(..)) && !within(X) && @annotation(c) { System.err.println(thisJoinPoint+" color="+c.color()); if (!c.color().equals(exp[i])) throw new RuntimeException("not "+exp[i]+"? "+c.color()); i++; } public static void verifyRun() { if (X.i != exp.length) throw new RuntimeException("Expected "+exp.length+" advice runs but did "+X.i); } }