Incorrect cast to String in mock definition for a Controller

[alisevych]

Description

Controller is cast to String in the mock definition for spring-petclinic project.

To Reproduce

1. Open as Gradle the spring-petclinic project in IntelliJ Idea 2022.3.3
2. Install the latest plugin built from main
3. Generate tests for OwnerController
4. Check compilation errors in the generated test class

Expected behavior

There should not be casts of Controller classes to String.
Also OwnerController is added as a field with @Injectmocks annotation.

Actual behavior

There are two tests in ERROR SUITE where Controller is cast to String in the mock definition.
1 - in SYMBOLIC EXECUTION: ERROR SUITE for method processFindForm
2 - in OTHER: ERROR SUITE for method processFindForm

Visual proofs (screenshots, logs, images)

public final class OwnerControllerTest {

	@InjectMocks
	public OwnerController ownerController;

	/**
	 * @utbot.classUnderTest {@link OwnerController}
	 * @utbot.methodUnderTest {@link OwnerController#processFindForm(int, Owner, BindingResult, Model)}
	 * @utbot.executesCondition {@code (owner.getLastName() == null): False}
	 * @utbot.throwsException {@link NullPointerException} in: ownersResults.isEmpty()
	 */
	@Test
	@DisplayName("processFindForm: ownersResults.isEmpty() -> ThrowNullPointerException")
	public void testProcessFindForm_OwnerGetLastNameNotEqualsNull() {
		org.mockito.MockedStatic mockedStatic = null;
		try {
			mockedStatic = mockStatic(PageRequest.class);
			(mockedStatic.when(() -> PageRequest.of(anyInt(), anyInt()))).thenReturn(((PageRequest) null));
            /* WARNING!!! Automatically used "Mockito static mocking" framework for mocking statics
            because execution encountered flaky methods
            To change this behaviour edit [Settings -> UtBot -> Force static mocking] */
			(when(ownerRepositoryMock.findByLastName(any(), any()))).thenReturn(((Page) null));
			Owner ownerMock = mock(Owner.class);
			(when(ownerMock.getLastName())).thenReturn(((String) ownerController), ((String) null));

			/* This test fails because method [org.springframework.samples.petclinic.owner.OwnerController.processFindForm] produces [java.lang.NullPointerException] */
			ownerController.processFindForm(-255, ownerMock, null, null);
		} finally {
			mockedStatic.close();
		}
	}

	@Test
	public void testProcessFindForm2() {
		org.mockito.MockedStatic mockedStatic = null;
		try {
			mockedStatic = mockStatic(PageRequest.class);
			(mockedStatic.when(() -> PageRequest.of(anyInt(), anyInt()))).thenReturn(((PageRequest) null));
            /* WARNING!!! Automatically used "Mockito static mocking" framework for mocking statics
            because execution encountered flaky methods
            To change this behaviour edit [Settings -> UtBot -> Force static mocking] */
			(when(pageMock.isEmpty())).thenReturn(false);
			(when(pageMock.getTotalElements())).thenReturn(-9223372036854775806L);
			(when(ownerRepositoryMock.findByLastName(any(), any()))).thenReturn(pageMock);
			Owner ownerMock = mock(Owner.class);
			(when(ownerMock.getLastName())).thenReturn(((String) ownerController), ((String) null));

            /* This test fails because method [org.springframework.samples.petclinic.owner.OwnerController.processFindForm] produces [java.lang.NullPointerException]
                org.springframework.samples.petclinic.owner.OwnerController.addPaginationModel(OwnerController.java:114)
                org.springframework.samples.petclinic.owner.OwnerController.processFindForm(OwnerController.java:110) */
			ownerController.processFindForm(0, ownerMock, null, null);
		} finally {
			mockedStatic.close();
		}
	}

Environment

Windows 10 Pro
IntelliJ IDEA 2022.3.3 Ultimate
Project is opened as Gradle

[sofurihafe]

The problem is with UtAssembleModel checks for equality. String UtAssembleModel is equal to OwnerController UtAssembleModel. But it's obvious that they are not the same. They have the same id, and they are in the same execution and testSet.

They have the same ModelId:

[alisevych]

With one of the latest plugin builds
in one of generated tests the same OwnerController is cast to Integer (where we define mock for getId() method)

	///region OTHER: SUCCESSFUL EXECUTIONS for method processCreationForm(org.springframework.samples.petclinic.owner.Owner, org.springframework.validation.BindingResult)

	@Test
	public void testProcessCreationForm1() {
		((doNothing()).when(ownerRepositoryMock)).save(any());
		Owner ownerMock = mock(Owner.class);
		(when(ownerMock.getId())).thenReturn(((Integer) ownerController));
		BindingResult resultMock = mock(BindingResult.class);
		(when(resultMock.hasErrors())).thenReturn(false);

		String actual = ownerController.processCreationForm(ownerMock, resultMock);

		String expected = "redirect:/owners/1";
		assertEquals(expected, actual);
	}