The following code examples shows compile time error (java.lang.AssertionError):
In the following examples, a result expressions with a conditional operator is used as value break statement in the switch statement.

Code 1:

public class Test {
    public static void main(String[] args) {

        boolean b;

        b = switch(1){
            case 1: break true && true;
            default: break false;
        };

        System.out.println(b);
    }
}

Code 2:

public class Test {
    public static void main(String[] args) {

        boolean b;

        b = switch(1){
            case 1: break true || true;
            default: break false;
        };

        System.out.println(b);
    }
}

Code 3:

public class SwitchTest {
    public static void main(String[] args) {

        int a =0;
        boolean b = true;

        boolean b1 = switch(a){
            case 0: break b ? true : false;
            default: break false;
        };

        System.out.println(b1);
    }
}

Please find the error log as attachment.