Chaitanya commented on APEXMALHAR-2284:

getAsync() method has two parts. First it looks into the bucket memory, if it 
founds then it returns value with immediateFuture. If not then it returns the 
Future task with ValueFetchTask.
Task of ValueFetchTask is first checks into bucket memory again and if not 
found in memory then returns the value from disk.

In case of join operator, key is not present in first memory lookup, but it may 
present in the second lookup. 

> POJOInnerJoinOperatorTest fails in Travis CI
> --------------------------------------------
>                 Key: APEXMALHAR-2284
>                 URL: https://issues.apache.org/jira/browse/APEXMALHAR-2284
>             Project: Apache Apex Malhar
>          Issue Type: Bug
>            Reporter: Thomas Weise
>            Assignee: Chaitanya
>            Priority: Blocker
> https://s3.amazonaws.com/archive.travis-ci.org/jobs/166322754/log.txt
> {code}
> Failed tests: 
>   POJOInnerJoinOperatorTest.testEmitMultipleTuplesFromStream2:337 Number of 
> tuple emitted  expected:<2> but was:<4>
>   POJOInnerJoinOperatorTest.testInnerJoinOperator:184 Number of tuple emitted 
>  expected:<1> but was:<2>
>   POJOInnerJoinOperatorTest.testMultipleValues:236 Number of tuple emitted  
> expected:<2> but was:<3>
>   POJOInnerJoinOperatorTest.testUpdateStream1Values:292 Number of tuple 
> emitted  expected:<1> but was:<2>
> {code}

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