AEM 6.5 Java 11 upgrade: Junit tests with MockSlingHttpServletRequest adaptTo() failing

[bytecode0110]

On upgrading from Java 8 to Java 11, all unit tests with request.adaptTo() have started failing with NPE - code snippet below. We are using Junit 4 and mockito-core version 2.25.1. Please advice on this issue. Do we need to add additional dependencies when upgrading to Java 11? TIA.

import org.apache.sling.testing.mock.sling.servlet.MockSlingHttpServletRequest;

Resource resource = resolver.getResource("/abc-component/main_abc_component");
request.setResource(resource);
Abc abc = request.adaptTo(Abc.class);

[aanchal-sikka · Accepted solution]

Please refer to the unit test below

import org.apache.sling.api.resource.Resource;
import org.apache.sling.testing.mock.sling.ResourceResolverType;
import org.apache.sling.testing.mock.sling.servlet.MockSlingHttpServletRequest;
import org.apache.sling.testing.mock.sling.junit.SlingContext;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.mockito.Mock;
import static org.junit.Assert.*;
import static org.mockito.Mockito.*;

public class YourComponentTest {

    @Rule
    public SlingContext context = new SlingContext(ResourceResolverType.JCR_MOCK);

    @Mock
    private Resource resource;

    @Before
    public void setUp() {
        context.load().json("/your-test-resource.json", "/abc-component");
    }

    @test
    public void testAdaptToAbc() {
        MockSlingHttpServletRequest request = context.request();
        request.setResource(resource);

        // Mock Abc class
        Abc abc = mock(Abc.class);

        // Assume that your adaptTo method in Abc class returns abc instance
        when(request.adaptTo(Abc.class)).thenReturn(abc);

        // Perform the actual adaptation
        Abc adaptedAbc = request.adaptTo(Abc.class);

        // Verify that the adaptation was successful
        assertNotNull(adaptedAbc);

        // You can also verify that certain methods or behaviors on the mock Abc object are called as expected
        verify(abc).someMethod();

        // Add your test assertions here to check the behavior of the adapted Abc object.
    }
}