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https://issues.apache.org/jira/browse/HADOOP-17126?focusedWorklogId=547252&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-547252
 ]

ASF GitHub Bot logged work on HADOOP-17126:
-------------------------------------------

                Author: ASF GitHub Bot
            Created on: 03/Feb/21 19:52
            Start Date: 03/Feb/21 19:52
    Worklog Time Spent: 10m 
      Work Description: hadoop-yetus commented on pull request #2143:
URL: https://github.com/apache/hadoop/pull/2143#issuecomment-772778617


   :confetti_ball: **+1 overall**
   
   
   
   
   
   
   | Vote | Subsystem | Runtime |  Logfile | Comment |
   |:----:|----------:|--------:|:--------:|:-------:|
   | +0 :ok: |  reexec  |   4m 26s |  |  Docker mode activated.  |
   |||| _ Prechecks _ |
   | +1 :green_heart: |  dupname  |   0m  0s |  |  No case conflicting files 
found.  |
   | +1 :green_heart: |  @author  |   0m  0s |  |  The patch does not contain 
any @author tags.  |
   | +1 :green_heart: |   |   0m  0s | [test4tests](test4tests) |  The patch 
appears to include 1 new or modified test files.  |
   |||| _ trunk Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |  32m 52s |  |  trunk passed  |
   | +1 :green_heart: |  compile  |  20m 55s |  |  trunk passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  compile  |  18m 43s |  |  trunk passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01  |
   | +1 :green_heart: |  checkstyle  |   1m  2s |  |  trunk passed  |
   | +1 :green_heart: |  mvnsite  |   1m 27s |  |  trunk passed  |
   | +1 :green_heart: |  shadedclient  |  18m 52s |  |  branch has no errors 
when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m 10s |  |  trunk passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 47s |  |  trunk passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01  |
   | +0 :ok: |  spotbugs  |   3m  8s |  |  Used deprecated FindBugs config; 
considering switching to SpotBugs.  |
   | +1 :green_heart: |  findbugs  |   3m  4s |  |  trunk passed  |
   |||| _ Patch Compile Tests _ |
   | +1 :green_heart: |  mvninstall  |   1m  5s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  26m 48s |  |  the patch passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javac  |  26m 48s |  |  the patch passed  |
   | +1 :green_heart: |  compile  |  24m 35s |  |  the patch passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01  |
   | +1 :green_heart: |  javac  |  24m 35s |  |  the patch passed  |
   | +1 :green_heart: |  checkstyle  |   1m 14s |  |  the patch passed  |
   | +1 :green_heart: |  mvnsite  |   1m 43s |  |  the patch passed  |
   | +1 :green_heart: |  whitespace  |   0m  0s |  |  The patch has no 
whitespace issues.  |
   | +1 :green_heart: |  shadedclient  |  18m 12s |  |  patch has no errors 
when building and testing our client artifacts.  |
   | +1 :green_heart: |  javadoc  |   1m  9s |  |  the patch passed with JDK 
Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04  |
   | +1 :green_heart: |  javadoc  |   1m 52s |  |  the patch passed with JDK 
Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01  |
   | +1 :green_heart: |  findbugs  |   2m 58s |  |  the patch passed  |
   |||| _ Other Tests _ |
   | +1 :green_heart: |  unit  |  19m  8s |  |  hadoop-common in the patch 
passed.  |
   | +1 :green_heart: |  asflicense  |   1m  6s |  |  The patch does not 
generate ASF License warnings.  |
   |  |   | 206m 38s |  |  |
   
   
   | Subsystem | Report/Notes |
   |----------:|:-------------|
   | Docker | ClientAPI=1.41 ServerAPI=1.41 base: 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2143/7/artifact/out/Dockerfile
 |
   | GITHUB PR | https://github.com/apache/hadoop/pull/2143 |
   | Optional Tests | dupname asflicense compile javac javadoc mvninstall 
mvnsite unit shadedclient findbugs checkstyle |
   | uname | Linux c8cf890e6c74 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 
11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux |
   | Build tool | maven |
   | Personality | dev-support/bin/hadoop.sh |
   | git revision | trunk / 182623d2bc7 |
   | Default Java | Private Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 |
   | Multi-JDK versions | 
/usr/lib/jvm/java-11-openjdk-amd64:Ubuntu-11.0.9.1+1-Ubuntu-0ubuntu1.20.04 
/usr/lib/jvm/java-8-openjdk-amd64:Private 
Build-1.8.0_275-8u275-b01-0ubuntu1~20.04-b01 |
   |  Test Results | 
https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-2143/7/testReport/ |
   | Max. process+thread count | 1297 (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-2143/7/console |
   | versions | git=2.25.1 maven=3.6.3 findbugs=4.0.6 |
   | Powered by | Apache Yetus 0.13.0-SNAPSHOT https://yetus.apache.org |
   
   
   This message was automatically generated.
   
   


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

    Worklog Id:     (was: 547252)
    Time Spent: 20m  (was: 10m)

> 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: 20m
>  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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