PsiType (PsiType... psiTypes) { PsiType result = null; final PsiManager manager = getPsiManager(); for (final PsiType other : psiTypes) { result = TypesUtil.getLeastUpperBoundNullable(result, other, manager); } return result == null ? LazyFqnClassType .getLazyType(CommonClassNames.JAVA_LANG_OBJECT, getLanguageLevel(), getResolveScope(), myFacade) : result; }