带有null参数的Java方法调度

public void myMethod(String myParam) {
    if (myParam == null) {
        throw new IllegalArgumentException("myParam cannot be null");
    }
    // method implementation
}

public void myMethod(String myParam) {
    myParam = myParam == null ? "" : myParam;
    // method implementation
}

public void myMethod(Optional<String> myParam) {
    myParam.ifPresent(param -> {
        // method implementation
    });
}