小编Ant*_*t20的帖子

try { 

} catch (ex: MyException1, MyException2 ) {
    logger.warn("", ex)
}

要么

try { 

} catch (ex: MyException1 | MyException2 ) {
    logger.warn("", ex)
}

结果,编译错误:Unresolved reference: MyException2.

如何在Kotlin上同时捕获许多例外？

我试过这样的事情:

private volatile var instanceState: InstanceState = InstanceState.starts

Error:  'Expected member declaration'

和这样:

private volatile var instanceState: InstanceState = InstanceState.starts

Error:  'Property getter or setter expected'

Kotlin不支持易失性？

object WalletConfig {

    init {
        fill(HashMap<String, String>())
    }

    var clientUrl: String by Delegates.notNull()
        private set

    fun fill(settingMap: Map<String, String>) {
        try {
            clientUrl = settingMap["URL_CLIENT"] ?: ""
        } catch(ex:Exception) { }
    }
}

throw ex:fill:在ru.WalletConfig.setClientUrl(WalletConfig.kt)加载'wallet.config'配置文件:java.lang.NullPointerException

@Entity
@Table(name = "t_payment")
data class PaymentEntity(
        @ManyToOne(cascade = CascadeType.DETACH)
        @JoinColumn(name = "user_id", nullable = false)
        var user: User? = null) : Serializable {
}

由于编译错误: "Type mismatch"