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Posted to notifications@dubbo.apache.org by GitBox <gi...@apache.org> on 2022/03/10 11:44:19 UTC

[GitHub] [dubbo] zcbbpo opened a new issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

zcbbpo opened a new issue #9765:
URL: https://github.com/apache/dubbo/issues/9765


   Hi, The telnet dubbo will throw class cast exception
   
   ### Environment
   
   * Dubbo version: 2.7.13
   * Operating System version: mac os 12.2
   * Java version: 1.8
   
   ### Steps to reproduce this issue
   
   1. enable qos
   2. open cmd and type telnet ip port
   3. type ls
   The console display class cast exception
   ![image](https://user-images.githubusercontent.com/54526829/157654979-f115431d-fbb8-42f3-97a8-5d51e32a793c.png)
   
   
   
   I have debug and see the source _code:
   org.apache.dubbo.qos.command.util.ServiceCheckUtils#isRegistered
   and find 
   ![image](https://user-images.githubusercontent.com/54526829/157654435-3191a805-6e05-4c0a-bdcb-d0208aed8432.png)
   org.apache.dubbo.registry.client.ServiceDiscoveryRegistry was not extend org.apache.dubbo.registry.support.AbstractRegistry
   So 
   `AbstractRegistry abstractRegistry = (AbstractRegistry) registries.iterator().next()`
   this code will throws class cast exception
   
   


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[GitHub] [dubbo] zcbbpo commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
zcbbpo commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1064919782


   I have copy dubbo version 3.0 code to override this method , but next method: org.apache.dubbo.qos.command.util.ServiceCheckUtils#getConsumerAddressNum
   also throw class cast exception when at telnet console type ls
   ![image](https://user-images.githubusercontent.com/54526829/157837637-eda1fd25-c821-4e00-8676-2106c90e8116.png)
   


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[GitHub] [dubbo] CrazyHZM commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
CrazyHZM commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1064925796


   @zcbbpo 
   Could you please submit a PR to fix this?


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[GitHub] [dubbo] zcbbpo closed issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
zcbbpo closed issue #9765:
URL: https://github.com/apache/dubbo/issues/9765


   


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[GitHub] [dubbo] zcbbpo commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
zcbbpo commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1064921244


   I have to modify to this , The telnet "LS" commond was work fine.
   ![image](https://user-images.githubusercontent.com/54526829/157837805-e16d3119-6ee2-426b-b4b6-dea3087a524e.png)
   


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[GitHub] [dubbo] chickenlj commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
chickenlj commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1066380886


   > @CrazyHZM Could you please help review and check for this [PR](https://github.com/apache/dubbo/pull/9769)
   
   Please submit PR against the master branch. Better to only add one `if (instanceof)` check.


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[GitHub] [dubbo] zcbbpo commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
zcbbpo commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1064932211


   @CrazyHZM ok


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[GitHub] [dubbo] zcbbpo commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
zcbbpo commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1065015565


   @CrazyHZM Could you please help review and check for this [PR](https://github.com/apache/dubbo/pull/9769) 


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[GitHub] [dubbo] BurningCN commented on issue #9765: ServiceCheckUtils isRegistered seem throw class cast exception

Posted by GitBox <gi...@apache.org>.
BurningCN commented on issue #9765:
URL: https://github.com/apache/dubbo/issues/9765#issuecomment-1064891635


   This issue has been fixed in the 3.0 branch #8614
   It seems that it has not been merged into master


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