I have been able to replicate this bug. It becomes apparent when attempting to run Minecraft.jar, the official Minecraft Java client under OpenJDK 9 on a fresh install of Ubuntu Mate 18.04 Beta 2. https://i.imgur.com/HRzRl8J.png
I was able to find a solution though it isn't a proper fix. Purge all related packages and install the older openjdk-8-jre first, then an newer version on top of it. It looks like the default packages are not installing the certificates properly. See https://askubuntu.com/questions/971059/17-10-openjdk-and-oracle- jdk-8-and-9-the-trustanchors-parameter-must-be-non-empt under amb85. Ubuntu MATE 18.04 includes a ppa in the Software Boutique which installs Minecraft, but it runs into the same issue as using Minecraft.jar from Mojang's website. -- You received this bug notification because you are a member of OpenJDK, which is subscribed to openjdk-9 in Ubuntu. https://bugs.launchpad.net/bugs/1743139 Title: java.security.InvalidAlgorithmParameterException: the trustAnchors parameter must be non-empty Status in openjdk-9 package in Ubuntu: Confirmed Bug description: When trying to access anything using Java + HTTPS, the process is terminated with an java.security.InvalidAlgorithmParameterException. Adding -Djavax.net.ssl.trustStorePassword=changeit to the command line flags of java fixes this problem. Either the trust store's password should be changed, or this flag sould be added by default. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/openjdk-9/+bug/1743139/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~openjdk Post to : openjdk@lists.launchpad.net Unsubscribe : https://launchpad.net/~openjdk More help : https://help.launchpad.net/ListHelp
