@NotNull
private List<AnnotationData> collectExternalAnnotations(@NotNull PsiModifierListOwner listOwner) {
if (!hasAnyAnnotationsRoots()) return Collections.emptyList();
List<AnnotationData> cached;
while (true) {
cached = (List<AnnotationData>) cache.get(listOwner);
if (cached == NO_DATA || !cached.isEmpty()) return cached;
List<AnnotationData> computed = doCollect(listOwner, false);
if (cache.replace(listOwner, cached, computed)) {
cached = computed;
break;
}
}
return cached;
}
protected void dropCache() {
myExternalAnnotations.clear();
annotationFileToDataAndModStamp.clear();
cache.clear();
}