DocletTag pointcutTag = javaField.getTagByName(ATTR_IMPLEMENTS);
if (pointcutTag == null) return;
String expression = pointcutTag.getValue();
enhancer.insertFieldAttribute(
javaField,
new ImplementsAttribute(expression)
);
log("\tinterface introduction [" + javaField.getType().getValue() + "::" + expression + "]");
}