java "hello world" scratch complains about NoClassDefFoundError for log4j or RendererMap

I tried to create this very simple scratch in IntelliJ IDEA 2016.3.2 but when i compiles I end up with "Error:java: java.lang.NoClassDefFoundError: org/apache/log4j/or/RendererMap". What do I have to change to be able to run scratches?

class Scratch {

    public static void main(String[] args) {
        System.out.println("Hello");

    }
}