for (AnnotationMirror annotation : field.getAnnotationMirrors()) {
    Map<? extends ExecutableElement, ? extends AnnotationValue> annotationValueMap = annotation.getElementValues();

    messager.printMessage(Diagnostic.Kind.WARNING, annotation.toString() + ":" + annotationValueMap.toString());
}

@MyAnnotation:{}

@MyAnnotation(max = 387, min = 66876, ...)
private Integer myField;

@Retention(RetentionPolicy.SOURCE)
@Target(ElementType.FIELD)
public @interface MyAnnotation {
  int max();

  boolean allowAuto();

  int min();
}

MyAnnotation myAnnotation= field.getAnnotation(MyAnnotation.class);
int max = myAnnotation.max();
int min = myAnnotation.min();

for (AnnotationMirror annotation : field.getAnnotationMirrors()) {
    Map<? extends ExecutableElement, ? extends AnnotationValue> annotationValueMap = annotation.getElementValues();
    annotationValueMap.forEach((element, annotationValue) -> {
        messager.printMessage(Diagnostic.Kind.WARNING, element.getSimpleName().toString() + ":" + annotationValue.getValue());
    });
}