Kotlin模拟Spring启动测试无法编译

所以我有以下测试

@Test
    fun `when save claims is called with email saved to that profile` () {
        //arrange
        given(profileRepository.findProfileByEmail(anyString())).willAnswer { daoProfile }
        given(patientRepository.findById(anyInt())).willAnswer { Optional.of(daoPatient) }
        given(claimRepository.saveAll(anyList())).willAnswer { mutableListOf(daoClaim) }

        //act
        val result = claimService.saveClaimsForEmail(listOf(dtoClaim), "Test@test.test")

        //assert
        assert(result != null)
        assert(result?.isNotEmpty() ?: false)
        verify(claimRepository).saveAll(anyList())
    } 

线 given(claimRepository.saveAll(anyList())).willAnswer { mutableListOf(daoClaim) } 给出以下错误

e: org.jetbrains.kotlin.codegen.CompilationException: Back-end (JVM) Internal error: Failed to generate expression: KtBlockExpression
File being compiled at position: (217,71) in /Users/archer/Work/masterhealth/master_billing/src/test/kotlin/com/masterhealthsoftware/master_billing/data/service/ClaimServiceTest.kt
The root cause java.lang.IllegalStateException was thrown at: org.jetbrains.kotlin.codegen.state.KotlinTypeMapper$typeMappingConfiguration$1.processErrorType(KotlinTypeMapper.kt:113)
...
Caused by: java.lang.IllegalStateException: Error type encountered: (???..???) (FlexibleTypeImpl).
        at org.jetbrains.kotlin.codegen.state.KotlinTypeMapper$typeMappingConfiguration$1.processErrorType(KotlinTypeMapper.kt:113)

当该行被删除时,它会编译,但由于明显的原因测试失败。

claimResponsive在测试类的顶部被注释为@MockBean,是一个JpaInterface。第217行是函数的开始。我也试着用 when 其他各种willReturn或willAnswer。。。。

知道为什么吗?