问使用java 11进行pojo测试

EN

 testImplementation("pl.pojo:pojo-tester:0.7.6")

package com.product.model;

import static pl.pojo.tester.api.assertion.Assertions.assertPojoMethodsFor;
import org.junit.Test;
import pl.pojo.tester.api.assertion.Method;
import com.product.CassOne;
import com.product.CassTwo;
import com.product.CassThree;

public class PojoTests {
    
    @Test
    public void testPojos() {
        final Class<?>[] classesUnderTest = {
                CassOne.class,
                ClassTwo.class,
                ClassThree.class};

        for (Class<?> classUnderTest : classesUnderTest) {
            assertPojoMethodsFor(classUnderTest).testing(Method.GETTER, Method.SETTER, Method.TO_STRING).areWellImplemented();
        }
    }

}

java.lang.NullPointerException at the line 

assertPojoMethodsFor(classUnderTest).testing(Method.GETTER, Method.SETTER, Method.TO_STRING).areWellImplemented();