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https://issues.apache.org/jira/browse/YARN-2999?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14261775#comment-14261775
 ] 

Jian He commented on YARN-2999:
-------------------------------

+1 

> Compilation error in AllocationConfiguration.java in java1.7 while running 
> tests
> --------------------------------------------------------------------------------
>
>                 Key: YARN-2999
>                 URL: https://issues.apache.org/jira/browse/YARN-2999
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>            Reporter: Rohith
>            Assignee: Rohith
>         Attachments: 0001-YARN-2999.patch
>
>
> In AllocationConfiguration, in the below object creation, generic type must 
> be specified as instance variable,otherwise java1.7 lead compilation error 
> while running tests for RM and NM
> {{reservableQueues = new HashSet<>();}}
> Report :
> {code}
> java.lang.Error: Unresolved compilation problem: 
>       '<>' operator is not allowed for source level below 1.7
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.AllocationConfiguration.<init>(AllocationConfiguration.java:150)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.initScheduler(FairScheduler.java:1276)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.serviceInit(FairScheduler.java:1320)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>       at 
> org.apache.hadoop.service.CompositeService.serviceInit(CompositeService.java:107)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager$RMActiveServices.serviceInit(ResourceManager.java:559)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.createAndInitActiveServices(ResourceManager.java:985)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceInit(ResourceManager.java:251)
>       at 
> org.apache.hadoop.service.AbstractService.init(AbstractService.java:163)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart$TestSecurityMockRM.init(TestRMRestart.java:2027)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.MockRM.<init>(MockRM.java:108)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart$TestSecurityMockRM.<init>(TestRMRestart.java:2020)
>       at 
> org.apache.hadoop.yarn.server.resourcemanager.TestRMRestart.testAppAttemptTokensRestoredOnRMRestart(TestRMRestart.java:1199)
> {code} 



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