Mock for a parent class is created

[alisevych]

Description

Mock of a parent class is created, which is then tried to be cast to the needed class.

To Reproduce

1. Install -IU- UnitTestBot plugin in IntelliJ IDEA
2. Open spring-petclinic
3. Generate ad Run Unit tests for PetValidator with PetClinicApplication

Expected behavior

Mock of Pet.class is expected to be used.

Actual behavior

Mock of NamedEntity.class is created, and then cast to Pet is made. 5 of 11 tests fail on ClassCastException thrown from test code.

Screenshots, logs

	@Test
	@DisplayName("validate: errors.rejectValue(\"type\", REQUIRED, REQUIRED) : True -> ThrowNullPointerException")
	public void testValidate_ThrowNullPointerException_2() {
		MockedStatic mockedStatic = null;
		try {
			mockedStatic = mockStatic(StringUtils.class);
			(mockedStatic.when(() -> StringUtils.hasLength(any(String.class)))).thenReturn(true);
			PetValidator petValidator = new PetValidator();
			NamedEntity objMock = mock(NamedEntity.class);
			(when(objMock.getName())).thenReturn(((String) null));
			(when(objMock.isNew())).thenReturn(true);
			(when((((Pet) objMock)).getType())).thenReturn(((PetType) null));

			/* This test fails because method [org.springframework.samples.petclinic.owner.PetValidator.validate] produces [java.lang.NullPointerException] */
			petValidator.validate(objMock, null);
		} finally {
			mockedStatic.close();
		}
	}

Environment

IntelliJ IDEA version - Ultimate 2023.2 Project - Gradle JDK - 17