Moca-git commented on issue #2187:
URL:
https://github.com/apache/servicecomb-java-chassis/issues/2187#issuecomment-757663286
>
>
> 这个异常结合代码不应该抛出，你可以看下 ResponseMapperFactorys 代码：
>
> ```
> public MAPPER createResponseMapper(Type providerType) {
> for (ResponseMapperFactory<MAPPER> factory : factorys) {
> if (!factory.isMatch(providerType)) {
> continue;
> }
>
> return factory.createResponseMapper(this, providerType);
> }
>
> throw new IllegalStateException(
> String.format("can not find response mapper for %s, this should
never happened.",
> providerType.getTypeName()));
> }
> ```
>
> `DefaultProducerResponseMapperFactory` 可以保证永远不会走到异常分支。 你可以调试下代码，看看实际情况。
现在抛出这个异常是不是说明provider没有提供服务啊？
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