Ivan A. Veselovsky created HADOOP-9002:
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             Summary: repair test 
org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal
                 Key: HADOOP-9002
                 URL: https://issues.apache.org/jira/browse/HADOOP-9002
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Ivan A. Veselovsky
            Assignee: Ivan A. Veselovsky


The test org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal 
is @Ignor-ed. 
Due to that several classes in package 
org.apache.hadoop.mapreduce.security.token have zero unit-test coverage.

The problem is that the test assumed that class 
org.apache.hadoop.mapreduce.security.token.TestDelegationTokenRenewal.Renewer 
is used as a custom implementation of the 
org.apache.hadoop.security.token.TokenRenewer service, but that did not happen, 
because this custom service implementation was not registered. 
We solved this problem by using special classloader that is invoked to find the 
resource META-INF/services/org.apache.hadoop.security.token.TokenRenewer , and 
supplies some custom content for it. This way the custom service implementation 
gets instantiated.

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