Due to changes in the packaging format (from tar.gz to tar.ux) NodeJS Versions newer than 6.6.0 are not shown in the drop down box when installing NodeJS from nodejs.org.
It is also not possible to use the ux file in the URL, as the compression seems to be unsupported. So the only way to update NodeJS now is a repack to tar.gz and upload it to a local server (or install it completely manually).
xz compression for java is available at https://tukaani.org/xz/java.html
to support the changed URLs the LatestInstallerPathResolver seens to need some changes.