assertTrue(seq.getItemCount() > 0);
query = "import module namespace spatial='http://exist-db.org/xquery/spatial' " +
"at 'java:org.exist.examples.indexing.spatial.module.SpatialModule'; " +
"declare namespace gml = 'http://www.opengis.net/gml'; " +
"spatial:buffer((//gml:Polygon)[1], 100, 1)";
seq = xquery.execute(query, null, AccessContext.TEST);
assertNotNull(seq);
assertTrue(seq.getItemCount() > 0);
query = "import module namespace spatial='http://exist-db.org/xquery/spatial' " +
"at 'java:org.exist.examples.indexing.spatial.module.SpatialModule'; " +
"declare namespace gml = 'http://www.opengis.net/gml'; " +