LinkedHashSet<PsiElement> (@NotNull PsiClass aClass) { LinkedHashSet<PsiElement> members = new LinkedHashSet<>(); addPhysicalElements(aClass.getFields(), members, aClass); addPhysicalElements(aClass.getMethods(), members, aClass); addPhysicalElements(aClass.getInnerClasses(), members, aClass); addPhysicalElements(aClass.getInitializers(), members, aClass); return members; }