Not all objects implement XServiceInfo. Any query must either be UNO_QUERY_THROW, or check its result after UNO_QUERY. Change-Id: I8b1d7c719c4a43a4d658957ad5a91181dc265186 Reviewed-on: https://gerrit.libreoffice.org/c/core/+/188080 Tested-by: Jenkins Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>