Github user HansBrende commented on the issue:
https://github.com/apache/any23/pull/122
While we're deprecating things anyway, there are a few notes of interest
which we should mull over before any merges into master happen here:
1. The method `WriterFactory.getMimeType()` appears to be redundant, as
there also exists the `WriterFactory.getRdfFormat().getDefaultMimeType()`.
2. Also note the presence of `FileFormat`, the superclass of `RDFFormat`,
which we could possibly use to make the `FormatWriterFactory` interface more
generic (possibly helpful for the `URIListWriterFactory`, and other writer
factories which similarly do not print RDF triples as output).
3. The method `WriterFactory.getRdfFormat()` is never actually used
anywhere in the Any23 project.
4. `JSONWriterFactory` and `URIListWriterFactory` both throw
`RuntimeException` in the `getRdfFormat()` method (the former questionably so,
since there exists the `RDFFormat.RDFJSON` file format).
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