JVM edit?

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    So apparently there's this pretty dangerous exploit that's been discovered on minecraft and the solution for fixing it is to add a certain JVM line to server launch script.

    The thing is, I can't find the server launch script.

    Is there any way to access it? If so, where is it and how could I edit it?

    Quote

    There is a serious exploit in several Java based server softwares. We've added a command line parameter to all Java servers that prevents your server from being exploited and we are also (as always) updating every server software automatically which already includes permanent fixes.
    -Aternos Team