I'm attempting to find all beans with a custom annotation so I can look at the annotation properties on each bean for help in a scheduled job.

Custom Spring Annotation:

@Component
@Scope("prototype")
public @interface Importer { String value() default ""; String fileRegex() default "";
}

Example Class Definition (MyAwesomeImporterFramework is a base class--no annotations)

@Importer(value="spring.bean.name", fileRegex="myfile.*\\.csv")
public class MyAwesomeImporter extends MyAwesomeImporterFramework

Code to find Spring beans with annotations:

public static List<Class<?>> findBeanClasses(String packageName, Class<? extends Annotation> annotation) throws ClassNotFoundException { List<Class<?>> classes = new LinkedList<Class<?>>(); ClassPathScanningCandidateComponentProvider scanner = new ClassPathScanningCandidateComponentProvider(false); scanner.addIncludeFilter(new AnnotationTypeFilter(annotation)); for(BeanDefinition def : scanner.findCandidateComponents(packageName)) { classes.add(Class.forName(def.getBeanClassName())); } return classes;
}

Code that utilizes the finder to get the annotation properties.

for(Class<?> clazz : AnnotationFinder.findBeanClasses(CLASS_BASE_PACKAGE, Importer.class)) { // Doesn't work either: // Importer annotation = clazz.getAnnotation(Importer.class); Importer annotation = AnnotationUtils.findAnnotation(clazz, Importer.class); importClasses.put(annotation.fileRegex(), annotation.value());
}

Here, both clazz.getAnnotation(Importer.class) and AnnotationUtils.findAnnotation(clazz, Importer.class) return null. Inspecting the code in the debugger shows the correct classes being identified, but annotations map on clazz is empty.

What am I missing? Both of those methods should return something, but it almost seems like the annotation has disappeared off the class during runtime??

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