public Collection<PsiClass> getClasses(@NotNull final String shortName, @NotNull final Project project, @NotNull final GlobalSearchScope scope) {
    return StubIndex.getElements(getKey(), shortName, project, new JavaSourceFilterScope(scope), PsiClass.class);
  }
public Collection<PsiClass> getClasses(@NotNull final String shortName, @NotNull final Project project, @NotNull final GlobalSearchScope scope)