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

public class PrivateMethodUnknownInit {

    int x;

    public PrivateMethodUnknownInit() {
        x = 1;
        m1();
        // :: error: (method.invocation.invalid)
        m2();
    }

    private void m1(
            @UnknownInitialization(PrivateMethodUnknownInit.class) PrivateMethodUnknownInit this) {}

    public void m2() {}
}