The source of the XML files is a GetFile Processor or a GenrateFlowFile Processor. I have also tested it with an InvokeHTTP processor where it works fine. However this does not solve it for me as I am dealing with physical XML files here. However this little detail might be interesting for the error finding process. ... View more

Same problem here. Valid XPath expressions produce empty strings in EvaluateXPath processor. In the attached screenshots only //@categoryId and //@UniqueType seem to work. I am using nifi 1.7.1 and jdk1.8.0_181.jdk. Any insights would be appreciated! ... View more