NotSerializableException：为参数eligibleCurrency定义的setter接受interface类型的参数

Question

试图从CordaV1迁移到V3。它在V1中运行良好，但在使用CordaV3后，它的投掷错误-

在java.lang.Thread.Run（Thread.java:748)处，原因为：java.io.NotSerializableException：net.corda.core.contracts.TransactionState->数据（net.corda.core.contracts.contractState）->参数eligibleCurrency采用类型为interface java.util.List的参数，但基础类型为java.util.List->类com.xxx.AgreementNegoation.State.AgreementNegoationState

我的州的一部分

public class AgreementNegotiationState extends AgreementStateTemplate implements QueryableState {
private String baseCurrency;
private List<String> eligibleCurrency;
private int deliveryAmount;

public String getBaseCurrency() {
    return baseCurrency;
}

public void setBaseCurrency(String baseCurrency) {
    this.baseCurrency = baseCurrency;
}

public List<String> getEligibleCurrency() {
    return eligibleCurrency;
}

public void setEligibleCurrency(List<String> eligibleCurrency) {
    this.eligibleCurrency = eligibleCurrency;
}

public int getDeliveryAmount() {
    return deliveryAmount;
}

public void setDeliveryAmount(int deliveryAmount) {
    this.deliveryAmount = deliveryAmount;
}

}

请协助。

Answer 1

这是Corda 3中的一个bug。它将被固定在Corda 4中。

同时，解决方法是将eligibleCurrency更改为列表<？>，并根据需要强制转换其元素：

private List<?> eligibleCurrency;

public List<?> getEligibleCurrency() {
    return eligibleCurrency;
}

public void setEligibleCurrency(List<?> eligibleCurrency) {
    this.eligibleCurrency = eligibleCurrency;
}