Ewen Cheslack-Postava created KAFKA-1747:
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             Summary: TestcaseEnv improperly shares state between instances
                 Key: KAFKA-1747
                 URL: https://issues.apache.org/jira/browse/KAFKA-1747
             Project: Kafka
          Issue Type: Bug
    Affects Versions: 0.8.1.1
            Reporter: Ewen Cheslack-Postava


TestcaseEnv in system tests uses class variables instead of instance variables 
for a bunch of state. This causes the data to persist between tests. In some 
cases this can cause tests to break (e.g. there will be state from a service 
running in a previous test that doesn't exist in the current test; trying to 
look up state about that service raises an exception or produces invalid data).



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