[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16184103#comment-16184103
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user asfgit closed the pull request at:

https://github.com/apache/flink/pull/4570


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API, Scala API
>Affects Versions: 1.4.0
>Reporter: Ted Yu
>Assignee: Hai Zhou UTC+8
>Priority: Minor
> Fix For: 1.4.0
>
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16184096#comment-16184096
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
@zentol thank you very much!. :beers:


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16184093#comment-16184093
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user zentol commented on the issue:

https://github.com/apache/flink/pull/4570
  
merging.


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16180972#comment-16180972
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
can someone review this please? :)


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou_UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16180971#comment-16180971
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

GitHub user yew1eb reopened a pull request:

https://github.com/apache/flink/pull/4570

[FLINK-7438][build]Remove useless import, avoid warnings

## What is the purpose of the change
Avoid warnings，details: [ISSUE 
#FLINK-7438](https://issues.apache.org/jira/browse/FLINK-7438).

## Brief change log
Remove useless "import org.apache.flink.util.OutputTag" in 
DataStream.scala, AllWindowedStream.scala, WindowedStream.scala

## Verifying this change

This change is already covered by existing tests.

## Does this pull request potentially affect one of the following parts:

  - Dependencies (does it add or upgrade a dependency): (no)
  - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
  - The serializers: (no)
  - The runtime per-record code paths (performance sensitive): (no)
  - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)

## Documentation

  - Does this pull request introduce a new feature? (no)
  - If yes, how is the feature documented? (not applicable / docs / 
JavaDocs / not documented)



You can merge this pull request into a Git repository by running:

$ git pull https://github.com/yew1eb/flink FLINK-7438

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/flink/pull/4570.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #4570


commit 8fe97c26ef18a9ba3846bc047e667d348265a0b6
Author: yew1eb 
Date:   2017-09-26T15:45:18Z

Remove useless import, avoid warnings




> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou_UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16180963#comment-16180963
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb closed the pull request at:

https://github.com/apache/flink/pull/4570


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou_UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16178594#comment-16178594
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
@zentol Let me know what you think about this PR now :)


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou_UTC+8
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16155375#comment-16155375
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
CC @zentol 


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16150753#comment-16150753
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
CC @aljoscha :satisfied:


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16149015#comment-16149015
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user yew1eb commented on the issue:

https://github.com/apache/flink/pull/4570
  
Hi @twalthr  @zentol,
Please helps to review, Thank you very much. :beers:


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Assignee: Hai Zhou
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16144622#comment-16144622
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

Github user tedyu commented on the issue:

https://github.com/apache/flink/pull/4570
  
lgtm


> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[ASF GitHub Bot (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16136217#comment-16136217
 ] 

ASF GitHub Bot commented on FLINK-7438:
---

GitHub user yew1eb opened a pull request:

https://github.com/apache/flink/pull/4570

[FLINK-7438][DataStream API]Remove useless import, avoid warnings

## What is the purpose of the change
Avoid warnings，details: [ISSUE 
#FLINK-7438](https://issues.apache.org/jira/browse/FLINK-7438).

## Brief change log
Remove useless "import org.apache.flink.util.OutputTag" in 
DataStream.scala, AllWindowedStream.scala, WindowedStream.scala

## Verifying this change

This change is already covered by existing tests.

## Does this pull request potentially affect one of the following parts:

  - Dependencies (does it add or upgrade a dependency): (no)
  - The public API, i.e., is any changed class annotated with 
`@Public(Evolving)`: (no)
  - The serializers: (no)
  - The runtime per-record code paths (performance sensitive): (no)
  - Anything that affects deployment or recovery: JobManager (and its 
components), Checkpointing, Yarn/Mesos, ZooKeeper: (no)

## Documentation

  - Does this pull request introduce a new feature? (no)
  - If yes, how is the feature documented? (not applicable / docs / 
JavaDocs / not documented)



You can merge this pull request into a Git repository by running:

$ git pull https://github.com/yew1eb/flink FLINK-7438

Alternatively you can review and apply these changes as the patch at:

https://github.com/apache/flink/pull/4570.patch

To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:

This closes #4570


commit d28f4b8eca85230faea8c3b8c9b868741fc63886
Author: yew1eb 
Date:   2017-08-22T03:16:51Z

Remove useless import, avoid warnings




> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[Hai Zhou (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16135084#comment-16135084
 ] 

Hai Zhou commented on FLINK-7438:
-

Hi [~aljoscha]
I would like to work on this issue.:D

> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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[jira] [Commented] (FLINK-7438) Some classes are eclipsed by classes in package scala

[Hai Zhou (JIRA)]

[ 
https://issues.apache.org/jira/browse/FLINK-7438?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel=16135076#comment-16135076
 ] 

Hai Zhou commented on FLINK-7438:
-

I think the reason for this problem is 
[https://issues.scala-lang.org/browse/SI-8808].
this problem：

{panel:title=org.apache.flink.streaming.api.scala.WindowedStream.scala}
package org.apache.flink.streaming.api.scala

import org.apache.flink.util.OutputTag  // permanently hidden warning here

class WindowedStream {

  @PublicEvolving
  def sideOutputLateData(outputTag: OutputTag[T]): WindowedStream[T, K, W] = {  

   //  this OutputTag class  is 
org.apache.flink.streaming.api.scala.OutputTag.scala
javaStream.sideOutputLateData(outputTag)   
this
  }
..
}
{panel}

{panel:title=org.apache.flink.streaming.api.scala.OutputTag.scala}
package org.apache.flink.streaming.api.scala

import org.apache.flink.util.{OutputTag => JOutputTag}

class OutputTag[T: TypeInformation](id: String) extends JOutputTag[T](id, 
implicitly[TypeInformation[T]])

object OutputTag {
  def apply[T: TypeInformation](id: String): OutputTag[T] = new OutputTag(id)
}
{panel}

> Some classes are eclipsed by classes in package scala
> -
>
> Key: FLINK-7438
> URL: https://issues.apache.org/jira/browse/FLINK-7438
> Project: Flink
>  Issue Type: Bug
>  Components: Build System, DataStream API
>Reporter: Ted Yu
>Priority: Minor
>
> Noticed the following during compilation:
> {code}
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> object OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> [WARNING]  ^
> [WARNING] 
> /flink/flink-streaming-scala/src/main/scala/org/apache/flink/streaming/api/scala/WindowedStream.scala:33:
>  warning: imported `OutputTag' is permanently  hidden by definition of 
> class OutputTag in package scala
> [WARNING] import org.apache.flink.util.{Collector, OutputTag}
> {code}
> We should avoid the warning e.r.t. OutputTag.
> There may be other occurrences of similar warning.



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