/**
* Returns true if the method is a provider.
*
* <p>Synthetic bridge methods are excluded. Starting with JDK 8, javac copies annotations onto
* bridge methods (which always have erased signatures).
*/
private Optional<Annotation> isProvider(Binder binder, Method method) {
if (method.isBridge() || method.isSynthetic()) {
return Optional.absent();
}
Annotation annotation = null;
for (Class<? extends Annotation> annotationClass : scanner.annotationClasses()) {
Annotation foundAnnotation = method.getAnnotation(annotationClass);
if (foundAnnotation != null) {
if (annotation != null) {
binder.addError(
"More than one annotation claimed by %s on method %s."
+ " Methods can only have one annotation claimed per scanner.",
scanner, method);
return Optional.absent();
}
annotation = foundAnnotation;
}
}
return Optional.fromNullable(annotation);
}
