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https://issues.apache.org/jira/browse/HADOOP-17126?focusedWorklogId=552603&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-552603
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ASF GitHub Bot logged work on HADOOP-17126:
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Author: ASF GitHub Bot
Created on: 15/Feb/21 15:51
Start Date: 15/Feb/21 15:51
Worklog Time Spent: 10m
Work Description: amahussein commented on pull request #2143:
URL: https://github.com/apache/hadoop/pull/2143#issuecomment-779308586
@steveloughran and @daryn-sharp, Are you guys okay with the current version?
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Issue Time Tracking
-------------------
Worklog Id: (was: 552603)
Time Spent: 50m (was: 40m)
> 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: 50m
> 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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