Sbt when Ubuntu 16.04 installation fails

Question

I encountered the problem of failed downloads when trying to install sbt 0.13.13 on ubuntu 16.04 , following the documentation at: http://www.scala-sbt.org/release/docs/Installing-sbt-on-Linux.html .

Below is the message log:

I also tried answering from paradigmatic here: Install sbt on ubuntu and: https://askubuntu.com/questions/732092/how-to-install-sbt-in-its-latest-version-in-ubuntu-14-04 . These posts are a bit old. Neverhteless, the official method still seems to be a mistake.

Has anyone encountered the same obstacles?

Answer 1

The reason and solution is actually provided by https://medium.com/@henricook/solution-to-sun-security-validator-validatorexception-e300dd7dba70#.tk7u7klut . Experimental java9 is to blame. Installing java8, as in https://www.digitalocean.com/community/tutorials/how-to-install-java-with-apt-get-on-ubuntu-16-04 , will solve it.