I could now answer the question on my own: 1. Finding xmlcalabash extension steps works by aannotationProcessing of classindex. Hence I have to include the following into my gradle file:
+ // needed to find xmlcalabash extension steps _in our code_ + api("org.atteo.classindex", "classindex", "3.4") + annotationProcessor("org.atteo.classindex", "classindex", "3.4") 2. The Java11 module system also must 'open' the classes to reflection in module-info.java + exports com.xmlcalabash.extensions.math_to_svg; + exports com.xmlcalabash.extensions.xslthl; 3. Java11 does not like the old jeuclid code. You have to use the the following jeuclid fork: + api("de.rototor.jeuclid:jeuclid-core:3.1.14") + api("de.rototor.jeuclid:jeuclid-fop:3.1.14") Kind regards, Thomas --------------------------------------------------------------------- To unsubscribe, e-mail: docbook-apps-unsubscr...@lists.oasis-open.org For additional commands, e-mail: docbook-apps-h...@lists.oasis-open.org