/usr/share/php/Icinga/Data/ is in php-icinga 2.1.0-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/php/Icinga/Data/ConfigObject.php
/usr/share/php/Icinga/Data/ConnectionInterface.php
/usr/share/php/Icinga/Data/DataArray/
/usr/share/php/Icinga/Data/DataArray/ArrayDatasource.php
/usr/share/php/Icinga/Data/Db/
/usr/share/php/Icinga/Data/Db/DbConnection.php
/usr/share/php/Icinga/Data/Db/DbQuery.php
/usr/share/php/Icinga/Data/Extensible.php
/usr/share/php/Icinga/Data/Fetchable.php
/usr/share/php/Icinga/Data/Filter/
/usr/share/php/Icinga/Data/Filter/Filter.php
/usr/share/php/Icinga/Data/Filter/FilterAnd.php
/usr/share/php/Icinga/Data/Filter/FilterChain.php
/usr/share/php/Icinga/Data/Filter/FilterEqual.php
/usr/share/php/Icinga/Data/Filter/FilterEqualOrGreaterThan.php
/usr/share/php/Icinga/Data/Filter/FilterEqualOrLessThan.php
/usr/share/php/Icinga/Data/Filter/FilterException.php
/usr/share/php/Icinga/Data/Filter/FilterExpression.php
/usr/share/php/Icinga/Data/Filter/FilterGreaterThan.php
/usr/share/php/Icinga/Data/Filter/FilterLessThan.php
/usr/share/php/Icinga/Data/Filter/FilterMatch.php
/usr/share/php/Icinga/Data/Filter/FilterMatchNot.php
/usr/share/php/Icinga/Data/Filter/FilterNot.php
/usr/share/php/Icinga/Data/Filter/FilterNotEqual.php
/usr/share/php/Icinga/Data/Filter/FilterOr.php
/usr/share/php/Icinga/Data/Filter/FilterParseException.php
/usr/share/php/Icinga/Data/Filter/FilterQueryString.php
/usr/share/php/Icinga/Data/FilterColumns.php
/usr/share/php/Icinga/Data/Filterable.php
/usr/share/php/Icinga/Data/Identifiable.php
/usr/share/php/Icinga/Data/Inspectable.php
/usr/share/php/Icinga/Data/Inspection.php
/usr/share/php/Icinga/Data/Limitable.php
/usr/share/php/Icinga/Data/Paginatable.php
/usr/share/php/Icinga/Data/PivotTable.php
/usr/share/php/Icinga/Data/QueryInterface.php
/usr/share/php/Icinga/Data/Queryable.php
/usr/share/php/Icinga/Data/Reducible.php
/usr/share/php/Icinga/Data/ResourceFactory.php
/usr/share/php/Icinga/Data/Selectable.php
/usr/share/php/Icinga/Data/SimpleQuery.php
/usr/share/php/Icinga/Data/SortRules.php
/usr/share/php/Icinga/Data/Sortable.php
/usr/share/php/Icinga/Data/Tree/
/usr/share/php/Icinga/Data/Tree/SimpleTree.php
/usr/share/php/Icinga/Data/Tree/TreeNode.php
/usr/share/php/Icinga/Data/Tree/TreeNodeIterator.php
/usr/share/php/Icinga/Data/Updatable.php