When OOXML file is invalid, org.apache.poi.ooxml.extractor.ExtractorFactory#createExtractor throws IllegalArgumentException:

 public static POITextExtractor createExtractor(OPCPackage pkg) throws IOException, OpenXML4JException, XmlException {
   ...
 if (core.size() != 1) {
      throw new IllegalArgumentException("Invalid OOXML Package received - expected 1 core document, found " + core.size());
            }
 }

POI already implements POIXMLException for this type of problem. Other methods all throw this exception:

org.apache.poi.ooxml.POIXMLDocumentPart.RelationPart#getPartFromOPCPackage

org.apache.poi.ooxml.POIXMLDocumentPart.RelationPart#getPartFromOPCPackage

org.apache.poi.xssf.eventusermodel.XSSFReader#XSSFReader

Please update the exception of createExtractor, so it is easier to catch this type of problems.