Why creating QAndroidJniObject from jobject or jclass or simple QString fails without error?

UPDATE: Same problem happens when I try to create QAndroidJniObject from jclass. Class is successfully found but QAndroidJniObject is not created and app crash.

 jclass cls = env->FindClass("com/example/MyLib/Person");
 QAndroidJniObject p(cls);

This also fails:

QAndroidJniObject string = QAndroidJniObject::fromString("TESTSTRING");

I have simple example where I try to call Java function from C++ library in android application. First I am building: libMyLib.so, then I am creating AAR library which includes the libMyLib.so and then I am testing the AAR in new test android app project.

Inside my Qt library project for libMyLib.so, I have jniinterface.cpp and this is the function:

JNIEXPORT void JNICALL Java_com_example_MyLib_LibraryClass_personTest(JNIEnv*, jobject, jobject person)
{
    qDebug() << "C++ lib _________ Creating now QAndroidJniObject";
    QAndroidJniObject p(person);
    p.callMethod<void>("printPersonInfo", "(I)V", 29);
}

After libMyLib.so is built successfully, I am copying it in my AAR android project in My_AAR_project\app\src\main\jniLibs\x86\libMyLib.so

In this My_AAR_project I have two simple classes: LibraryClass.java

public class LibraryClass {

    public native void personTest(Person person);

    public void testThePerson() {
        Person p = new Person();
        personTest(p);
    }

    static {
        System.loadLibrary("MyLib");
    }
}

And the other class is simple Person.java class:

public class Person
{
    public Person() {}

    public static void printPersonInfo(int n)
    {
        System.out.println("Called printPersonInfo " + " Name: John" + " age: " + n);
    }
}

And now after I built successfully AAR lib I am including it in my test android app and I am calling:

LibraryClass test = new LibraryClass();
test.testThePerson();

And the app crash and the last output is before creation of QAndroidJniObject:

D/: C++ lib _________ Creating now QAndroidJniObject

A/libc: Fatal signal 11 (SIGSEGV), code 1 (SEGV_MAPERR), fault addr 0x0 in tid 19897 (ampleandroidapp), pid 19897 (ampleandroidapp)

Any help or hint what may be the problem? Or I am doing something wrong.

To simplify what I am trying to do:

1. Create Person object on java side
2. Pass the Person object to C++ lirary
3. Call printPersonInfo function from C++ on the Person object that is received from java