Hong Liang Teoh created FLINK-37565:
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             Summary: Connector python CI failing for JDK 8
                 Key: FLINK-37565
                 URL: https://issues.apache.org/jira/browse/FLINK-37565
             Project: Flink
          Issue Type: Bug
          Components: Connectors / Common
            Reporter: Hong Liang Teoh


Python CI is failing for JDK 8 as the compiled version of PythonGatewayServer 
used is compiled for JDK 11

 

Error: Exception in thread "main" java.lang.UnsupportedClassVersionError: 
org/apache/flink/client/python/PythonGatewayServer has been compiled by a more 
recent version of the Java Runtime (class file version 55.0), this version of 
the Java Runtime only recognizes class file versions up to 52.0



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