Currently I am unable to open TopCoder Arena on Ubuntu 18.04. It gives an error message↵
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net.sourceforge.jnlp.LaunchException: Fatal: Launch Error: Could not launch JNLP file. The application has not been initialized, for more information execute javaws/browser from the command line and send a bug report.↵
at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:582)↵
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:945)↵
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Earlier it was working fine. But I guess, the recent updates are the issue for the problem. I have tried the solutions from this two sources [https://forums.linuxmint.com/viewtopic.php?t=294555](https://forums.linuxmint.com/viewtopic.php?t=294555) and [AskUbuntu](https://askubuntu.com/questions/1134881/icedtea-8-cannot-run-any-jnlp-application-maybe-due-to-openjdk-11) .↵
Till now I am unable to find a way to start the Arena. ↵
I have also tried solutions from this blog [https://mirror.codeforces.com/blog/entry/13613?](https://mirror.codeforces.com/blog/entry/13613?) and this thread  but none of them is working.↵
Please help !!
↵
~~~~~↵
net.sourceforge.jnlp.LaunchException: Fatal: Launch Error: Could not launch JNLP file. The application has not been initialized, for more information execute javaws/browser from the command line and send a bug report.↵
at net.sourceforge.jnlp.Launcher.launchApplication(Launcher.java:582)↵
at net.sourceforge.jnlp.Launcher$TgThread.run(Launcher.java:945)↵
~~~~~↵
Earlier it was working fine. But I guess, the recent updates are the issue for the problem. I have tried the solutions from this two sources [https://forums.linuxmint.com/viewtopic.php?t=294555](https://forums.linuxmint.com/viewtopic.php?t=294555) and [AskUbuntu](https://askubuntu.com/questions/1134881/icedtea-8-cannot-run-any-jnlp-application-maybe-due-to-openjdk-11) .↵
Till now I am unable to find a way to start the Arena.
I have also tried solutions from this blog [https://mirror.codeforces.com/blog/entry/13613?](https://mirror.codeforces.com/blog/entry/13613?) and this thread  but none of them is working.↵
Please help !!
