Cannot compile class with non-default constructor

[haitaoli]

If a class contains a non-default constructor, then the compiler fails with error: java.lang.AssertionError: Value of x -1. Here is the sample code that gives error:

class Main {
    Main(int i) {
    }

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

[konsoletyper]

When I put public modifer to class, the error disappears. So the reason is not in non-public constructor