String (@Nullable PsiAnnotationMemberValue _memberValue) { return StringUtil.join(AnnotationUtil.arrayAttributeValues(_memberValue), memberValue -> { if (memberValue instanceof PsiLiteral) { final Object o = ((PsiLiteral)memberValue).getValue(); if (o != null) { return o.toString(); } } return memberValue != null ? memberValue.getText() : ""; }, ", "); }