在Idea中构建Kotlin项目时出现UnsupportedOperationException

时间:2017-03-03 06:08:29

标签: java intellij-idea kotlin

当我尝试构建我的Kotlin项目时,我在Idea中获得了以下error

Error:Kotlin: [Internal Error] org.jetbrains.kotlin.util.KotlinFrontEndException: Exception while analyzing expression at (60,19) in E:/altruix-is/src/main/kotlin/com/mycompany/myproduct/capsulecrm/CapsuleCrmSubsystem.kt:
client.execute(req)

[...]

Caused by: java.lang.UnsupportedOperationException: doSubstitute with no original should not be called for synthetic extension
    at org.jetbrains.kotlin.synthetic.SamAdapterFunctionsScope$MyFunctionDescriptor.doSubstitute(SamAdapterFunctionsScope.kt:165)
    at org.jetbrains.kotlin.descriptors.impl.FunctionDescriptorImpl$CopyConfiguration.build(FunctionDescriptorImpl.java:553)
    at org.jetbrains.kotlin.load.java.ErasedOverridabilityCondition.isOverridable(ErasedOverridabilityCondition.kt:47)

错误似乎发生在电话

res = client.execute(req)

其中client是Apache HttpClient。

Screenshot

发生这种情况的源文件可以找到here

我向JetBrains提交了错误报告,但我需要进一步研究该项目,因此需要解决。请注意,直到昨天一切正常。昨天我将Kotlin插件升级到了最新版本,也许这就是问题所在。

如何避免上述错误?

更新1(03.03.2017 14:46 MSK):

这不起作用:

open fun addNote(note: String, compId: Long): ValidationResult {
    val client = httpClient
    if (client == null) {
        return ValidationResult(false, "Internal error")
    }

    var res: CloseableHttpResponse? = null
    var req: HttpUriRequest?
    try {
        req = composeAddNoteRequest(note, compId)
        res = client.execute(req)
        if (res.statusLine.statusCode != 201) {
            logger.error("addNote(note='$note', compId=$compId): Wrong status code ${res.statusLine.statusCode}")
            return ValidationResult(false, "Wrong status code (CRM interaction)")
        }
        return ValidationResult(true, "")
    }
    catch (throwable: Throwable) {
        logger.error("addNote(note='$note', compId=$compId)", throwable)
        return ValidationResult(false, "Database error")
    } finally {
        close(res)
    }
    return ValidationResult(false, "Internal logic error")
}

这有效(差异在于从顶部开始的第二行):

open fun addNote(note: String, compId: Long): ValidationResult {
    val client = httpClient as CloseableHttpClient // Change
    if (client == null) {
        return ValidationResult(false, "Internal error")
    }

    var res: CloseableHttpResponse? = null
    var req: HttpUriRequest?
    try {
        req = composeAddNoteRequest(note, compId)
        res = client.execute(req)
        if (res.statusLine.statusCode != 201) {
            logger.error("addNote(note='$note', compId=$compId): Wrong status code ${res.statusLine.statusCode}")
            return ValidationResult(false, "Wrong status code (CRM interaction)")
        }
        return ValidationResult(true, "")
    }
    catch (throwable: Throwable) {
        logger.error("addNote(note='$note', compId=$compId)", throwable)
        return ValidationResult(false, "Database error")
    } finally {
        close(res)
    }
    return ValidationResult(false, "Internal logic error")
}

1 个答案:

答案 0 :(得分:2)

在上面的示例中,client.execute(req)返回HttpResponse,这不是CloseableHttpResponse的子类型。因此,类型不匹配错误是正确的。您应该在此使用CloseableHttpClient,或将client.execute(req)投射到CloseableHttpResponse

我无法从您的示例中重现KotlinFrontEndException。从提供的堆栈跟踪中我可以推断出“SAM适配器”发生了错误 - 也就是说,当您在接受单个抽象方法(SAM)接口的Java方法调用中使用Kotlin lambda时。 如果问题仍然存在,请在此处提交错误:http://kotl.in/issue