Warnings are printed to stdout

[mielvds]

Warnings from Jena, for instance when using an unknown function, are printed to std out, which messes up the output. This should be stderr or maybe a way to surpress them?

[namedgraph]

Makes sense. Could you provide a reproducible example?

[mielvds]

For instance, using

BIND(ex:example(?x) AS ?y) without having an implementation of ex:example

[namedgraph]

Hmm, the error looks unrelated to Jena? But I'll try the BIND() example.