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https://issues.apache.org/jira/browse/HADOOP-17126?focusedWorklogId=602639&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-602639
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ASF GitHub Bot logged work on HADOOP-17126:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 26/May/21 23:14
            Start Date: 26/May/21 23:14
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #3050:
URL: https://github.com/apache/hadoop/pull/3050#issuecomment-849180097


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
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   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +0 :ok: |  codespell  |   0m  0s |  |  codespell was not available.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |  test4tests  |   0m  0s |  |  The patch appears to 
include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  34m  7s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  20m 54s |  |  trunk passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  checkstyle  |   1m  9s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 36s |  |  trunk passed  |
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Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
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Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
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   | +1 :green_heart: |  shadedclient  |  15m 40s |  |  branch has no errors 
when building and testing our client artifacts.  |
   | -0 :warning: |  patch  |  16m  3s |  |  Used diff version of patch file. 
Binary files and potentially other changes not applied. Please rebase and 
squash commits if necessary.  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   0m 54s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  20m 15s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javac  |  20m 15s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  18m 17s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
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   | +1 :green_heart: |  blanks  |   0m  0s |  |  The patch has no blanks 
issues.  |
   | -0 :warning: |  checkstyle  |   1m  7s | 
[/results-checkstyle-hadoop-common-project_hadoop-common.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3050/3/artifact/out/results-checkstyle-hadoop-common-project_hadoop-common.txt)
 |  hadoop-common-project/hadoop-common: The patch generated 1 new + 0 
unchanged - 0 fixed = 1 total (was 0)  |
   | +1 :green_heart: |  mvnsite  |   1m 34s |  |  the patch passed  |
   | +1 :green_heart: |  javadoc  |   1m  7s |  |  the patch passed with JDK 
Ubuntu-11.0.10+9-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 41s |  |  the patch passed with JDK 
Private Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08  |
   | +1 :green_heart: |  spotbugs  |   2m 35s |  |  the patch passed  |
   | +1 :green_heart: |  shadedclient  |  16m  8s |  |  patch has no errors 
when building and testing our client artifacts.  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  17m 14s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   0m 58s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 180m 18s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3050/3/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/3050 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
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   | uname | Linux 32e862d606c5 4.15.0-112-generic #113-Ubuntu SMP Thu Jul 9 
23:41:39 UTC 2020 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 0a460a4e731b1e2d3e35db33cd33f2ebd47f4965 |
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/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_282-8u282-b08-0ubuntu1~20.04-b08 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3050/3/testReport/ |
   | Max. process+thread count | 3062 (vs. ulimit of 5500) |
   | modules | C: hadoop-common-project/hadoop-common U: 
hadoop-common-project/hadoop-common |
   | Console output | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-3050/3/console |
   | versions | git=2.25.1 maven=3.6.3 spotbugs=4.2.2 |
   | Powered by | Apache Yetus 0.14.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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Issue Time Tracking
-------------------

    Worklog Id:     (was: 602639)
    Time Spent: 2h 10m  (was: 2h)

> implement non-guava Precondition checkNotNull
> ---------------------------------------------
>
>                 Key: HADOOP-17126
>                 URL: https://issues.apache.org/jira/browse/HADOOP-17126
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Ahmed Hussein
>            Assignee: Ahmed Hussein
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HADOOP-17126.001.patch, HADOOP-17126.002.patch
>
>          Time Spent: 2h 10m
>  Remaining Estimate: 0h
>
> As part In order to replace Guava Preconditions, we need to implement our own 
> versions of the API.
>  This Jira is to create {{checkNotNull}} in a new package dubbed {{unguava}}.
>  +The plan is as follows+
>  * create a new {{package org.apache.hadoop.util.unguava;}}
>  * {{create class Validate}}
>  * implement  {{package org.apache.hadoop.util.unguava.Validate;}} with the 
> following interface
>  ** {{checkNotNull(final T obj)}}
>  ** {{checkNotNull(final T reference, final Object errorMessage)}}
>  ** {{checkNotNull(final T obj, final String message, final Object... 
> values)}}
>  ** {{checkNotNull(final T obj,final Supplier<String> msgSupplier)}}
>  * {{guava.preconditions used String.lenientformat which suppressed 
> exceptions caused by string formatting of the exception message . So, in 
> order to avoid changing the behavior, the implementation catches Exceptions 
> triggered by building the message (IllegalFormat, InsufficientArg, 
> NullPointer..etc)}}
>  * {{After merging the new class, we can replace 
> guava.Preconditions.checkNotNull by {{unguava.Validate.checkNotNull}}}}
>  * We need the change to go into trunk, 3.1, 3.2, and 3.3
>  
> Similar Jiras will be created to implement checkState, checkArgument, 
> checkIndex



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