Thank you for the report Andreas, this is a side effect of the icu support recently enabled in libxml2 (#776254). I fixed it today in openjfx/8u40-b25.
Emmanuel Bourg __ This is the maintainer address of Debian's Java team <http://lists.alioth.debian.org/cgi-bin/mailman/listinfo/pkg-java-maintainers>. Please use debian-j...@lists.debian.org for discussions and questions.
