[GitHub] [dubbo] wangchengming666 commented on issue #9847: org.apache.dubbo.metadata.definition.builder.MapTypeBuilder#build写死actualTypeArgsLength==2？？

[GitBox <gi...@apache.org>]

wangchengming666 commented on issue #9847:
URL: https://github.com/apache/dubbo/issues/9847#issuecomment-1081302264


   翻了以前的一些issue 比如 #8212 和 #5122 都提到过这个问题，我认为这段强校验的代码没必要存在。
   ```
           if (actualTypeArgsLength != 2) {
               throw new IllegalArgumentException(MessageFormat.format(
                       "[ServiceDefinitionBuilder] Map type [{0}] with unexpected amount of arguments [{1}]."
                               + Arrays.toString(actualTypeArgs), type, actualTypeArgs));
           }
   ```
   虽然可以通过SPI来扩展，但是还是得用户带来了一定的困扰。


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