import org.checkerframework.checker.initialization.qual.UnderInitialization;
import org.checkerframework.checker.nullness.qual.*;

public class FlowConstructor {

    String a;
    String b;

    public FlowConstructor(float f) {
        a = "m";
        b = "n";
        semiRawMethod();
    }

    public FlowConstructor(int p) {
        a = "m";
        b = "n";
        // :: error: (method.invocation.invalid)
        nonRawMethod();
    }

    public FlowConstructor(double p) {
        a = "m";
        // :: error: (method.invocation.invalid)
        nonRawMethod(); // error
        b = "n";
    }

    void nonRawMethod() {
        a.toString();
        b.toString();
    }

    void semiRawMethod(@UnderInitialization(FlowConstructor.class) FlowConstructor this) {
        a.toString();
        b.toString();
    }
}