“Could not parse ontology” that was included into other ontology(owl-api)

Question

I try to load an ontology (test.owl) that includes bfo.owl. Versions of the used APIs:

OWL-API 3.4.3

hermit 1.3.8.4

It is possible to open the test ontology with Protégé 5. But when I try to load test.owl with my code, I get the error message below, which I don't understand. Is there anybody out there who can help me understanding the message and finding a way to load the ontology?

org.semanticweb.owlapi.model.UnloadableImportException: Could not load imported ontology: http://purl.obolibrary.org/obo/bfo/2014-05-03/bfo.owl Cause: Problem parsing http://purl.obolibrary.org/obo/bfo/2014-05-03/bfo.owl

Could not parse ontology.  Either a suitable parser could not be found, or parsing failed.  See parser logs below for explanation.
The following parsers were tried:
1) RDFXMLParser
2) OWLXMLParser
3) OWLFunctionalSyntaxOWLParser
4) TurtleOntologyParser
5) OWLOBOParser
6) KRSS2OWLParser
7) ManchesterOWLSyntaxOntologyParser


Detailed logs:
--------------------------------------------------------------------------------
Parser: RDFXMLParser
org.xml.sax.SAXParseException; systemId: http://purl.obolibrary.org/obo/bfo/2014-05-03/bfo.owl; lineNumber: 1; columnNumber: 50; Leerstellen erforderlich zwischen publicId und systemId.

--------------------------------------------------------------------------------
Parser: OWLXMLParser
org.xml.sax.SAXParseException; systemId: http://purl.obolibrary.org/obo/bfo/2014-05-03/bfo.owl; lineNumber: 1; columnNumber: 50; Leerstellen erforderlich zwischen publicId und systemId

Sorry for having the second part of the error message in a different style - but as I am not allowed to have more than 2 links in a text (due to lack of reputation) and I still wanted you to be able to test the link to bfo.owl, I had to be creative.

Answer 1

Owlapi 3.4 is ancient and many bugs have been fixed since. Protégé 5 uses 4.2.5.

There is a HermiT release compatible with owlapi 4, search Maven Central for version 1.3.8.413 (I curated the fork, it's released under net.sourceforge.owlapi).

This is also the HermiT version bundled with Protege 5.