Bug#893359: jboss-xnio FTBFS with openjdk-9

I could solve one part of the build issues with Java 9 but I am stuck with "/build/jboss-xnio-3.6.2/api/src/main/java/java/nio/channels/FileChannel.java:[19,1] package exists in another module: java.base " I have read about the new --patch-modules option but I am not sure if this is the right

Bug#893359: jboss-xnio FTBFS with openjdk-9

Source: jboss-xnio Version: 3.6.2-1 Severity: serious https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/jboss-xnio.html ... [ERROR] Failed to execute goal org.apache.maven.plugins:maven-javadoc-plugin:3.0.0:jar (default-cli) on project xnio-api: MavenReportException: Error