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From "Andrew Wang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4751) TestLeaseRenewer#testThreadName flakes
Date Thu, 25 Apr 2013 01:16:15 GMT
Andrew Wang created HDFS-4751:
---------------------------------

             Summary: TestLeaseRenewer#testThreadName flakes
                 Key: HDFS-4751
                 URL: https://issues.apache.org/jira/browse/HDFS-4751
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: test
    Affects Versions: 3.0.0, 2.0.5-beta
            Reporter: Andrew Wang
            Assignee: Andrew Wang
            Priority: Minor


Seen internally and during upstream trunk builds, error like the following:

{noformat}
Error Message:
 Unfinished stubbing detected here: -> at org.apache.hadoop.hdfs.TestLeaseRenewer.testThreadName(TestLeaseRenewer.java:197)
 E.g. thenReturn() may be missing. Examples of correct stubbing:     when(mock.isOk()).thenReturn(true);
    when(mock.isOk()).thenThrow(exception);     doThrow(exception).when(mock).someVoidMethod();
Hints:  1. missing thenReturn()  2. although stubbed methods may return mocks, you cannot
inline mock creation (mock()) call inside a thenReturn method (see issue 53)

Stack Trace:
org.mockito.exceptions.misusing.UnfinishedStubbingException:
Unfinished stubbing detected here:
-> at org.apache.hadoop.hdfs.TestLeaseRenewer.testThreadName(TestLeaseRenewer.java:197)
{noformat}

I believe it's due to mocking while being concurrently accessed by another thread.

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