Bug#899348: java.net.UnknownHostException: api.openstreetmap.org

[Bas Couwenberg]

On 2018-05-23 09:59, 積丹尼 Dan Jacobson wrote:
> Finally recovered with
> aptitude install default-jre/sid
> aptitude purge openjdk-11-jre openjdk-11-jre-headless
> What a mess.

It is a mess you created by installing packages from experimental.

My recommendation for you is to downgrade all packages you have 
installed from experimental to their version in unstable, and remove the 
experimental entries from your sources.list.

Kind Regards,

Bas