3

我们的应用程序中有一些使用 Java 的代码和其他使用 Kotlin 的代码。我们遇到了一个非常奇怪的情况。

该问题出现在某些设备上，在将其传递给构造函数时它报告platform为存在，尽管我们检查是否不存在并提供常量：nullAutoValue_SessionlastPlatformnullPlatform.MISSING

Caused by java.lang.NullPointerException: Null lastPlatform
x.x.x.x.AutoValue_Session.(SourceFile:27)
x.x.x.x.Session.from(SourceFile:28) // from that calls the child constructor
x.x.x.x.Session.(SourceFile:22) // whereNONE_FOUND is defined
x.x.x.x.Session.from(SourceFile:32) // entry point
[...]

有人遇到过 Android 和 Kotlin 互操作的问题吗？

更新：这发生在野外并且只有少量用户。还不能在本地复制它。

更新2：第二次调用Session.from是由第一次加载到内存中<clinit>引起的。Session

这是提到的两个类的代码：

平台.kt

sealed class Platform {

    abstract val name : String

    sealed class Local : Platform() {

        object Default : Local() {
            override val name: String = "android"
        }

        object Amazon : Local() {
            override val name: String = "android-amazon"
        }
    }

    object Missing : Platform() {
        override val name: String = "missing"
    }

    data class Remote(override val name: String) : Platform()

    companion object {
        @JvmName("from")
        @JvmStatic
        operator fun invoke(name: String?): Platform = when (name) {
            Local.Default.name -> Local.Default
            Local.Amazon.name -> Local.Amazon
            Missing.name -> Missing
            null -> Missing
            else -> Remote(name)
        }

        @JvmField
        val LOCAL : Platform = if (BuildConfig.amazon) Local.Amazon else Local.Generic

        @JvmField
        val MISSING : Platform = Missing
    }
}

会话.java

@AutoValue
public abstract class Session implements Serializable {

    public static final Session NONE_FOUND = from(0, new DateTime(0), Platform.MISSING);

    public static Session from(String id, @Nullable Platform lastPlatform) {
        Platform platform = lastPlatform == null ? Platform.MISSING : lastPlatform;
        return new AutoValue_Session(id, platform);
    }

    public static Session from(RemoteSession remote) {
        return from(
                remote.id(),
                remote.lastPlatform()
        );
    }

    public abstract String id();

    public abstract Platform lastPlatform();

}
4

0 回答 0