Question

我有一个图书馆，其中有一个伴随对象值，如下所示

companion object {
    const val QUEUE_CLUSTER_ID = "Commands"
}

我的项目的一个类依赖于该库，使用lib的QUEUE_CLUSTER_ID val如下所示

data class CreateCatalogItemCommand(
    @JsonProperty("styleVariant") val styleVariant: StyleVariant?) : Commandable() {

    companion object {
        const val QUEUE_ID =  QUEUE_CLUSTER_ID.plus("CreateCatalogItemCommand")
    }
}

问题是kotlin在我的机器上正确编译了项目，但是通过jenkins我得到了以下错误。当QUEUE_ID设置为普通字符串时，错误消失。

[INFO] --- kotlin-maven-plugin:1.3.21:compile (compile) @ catalog- 
service ---
[INFO] Applied plugin: 'spring'
[ERROR] /var/lib/jenkins/workspace/Catalog-Service/src/main/kotlin/com/mg/catalog/command/CreateCatalogItemCommand.kt: (11, 31) Unresolved reference: QUEUE_CLUSTER_ID
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 8.864s 
[INFO] Finished at: Fri Mar 29 08:40:37 UTC 2019
[INFO] Final Memory: 74M/713M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.jetbrains.kotlin:kotlin-maven- 
plugin:1.3.21:compile (compile) on project catalog-service: Compilation 
failure
[ERROR] /var/lib/jenkins/workspace/Catalog-Service/src/main/kotlin/com/mg/catalog/command/CreateCatalogItemCommand.kt: 
[11,31] Unresolved reference: QUEUE_CLUSTER_ID
[ERROR] -> [Help 1]
org.apache.maven.lifecycle.LifecycleExecutionException: Failed to 
execute goal org.jetbrains.kotlin:kotlin-maven-plugin:1.3.21:compile 
(compile) on project catalog-service: Compilation failure
/var/lib/jenkins/workspace/Catalog-Service/src/main/kotlin/com/mg/catalog/command/CreateCatalogItemCommand.kt:[11,31] Unresolved reference: QUEUE_CLUSTER_ID

Answer 1

似乎异常与kotlin类型推断有关。在指示类型之后，特别编译已完成，没有错误。但为什么？还是不明白我的机器如何通过类型推断进行编译？

companion object {
    const val QUEUE_CLUSTER_ID: String = "Commands"
}

Kotlin在本地计算机上正确编译了项目，但是通过Jenkins抛出异常

1 个答案: