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https://issues.apache.org/jira/browse/HADOOP-17858?focusedWorklogId=641530&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-641530
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ASF GitHub Bot logged work on HADOOP-17858:
-------------------------------------------
Author: ASF GitHub Bot
Created on: 25/Aug/21 07:13
Start Date: 25/Aug/21 07:13
Worklog Time Spent: 10m
Work Description: virajjasani commented on pull request #3321:
URL: https://github.com/apache/hadoop/pull/3321#issuecomment-905244311
Thank you @tasanuma!
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Issue Time Tracking
-------------------
Worklog Id: (was: 641530)
Time Spent: 1h (was: 50m)
> Avoid possible class loading deadlock with VerifierNone initialization
> ----------------------------------------------------------------------
>
> Key: HADOOP-17858
> URL: https://issues.apache.org/jira/browse/HADOOP-17858
> Project: Hadoop Common
> Issue Type: Bug
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0, 3.2.3, 3.3.2
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> Superclass Verifier has a static initializer VERIFIER_NONE that initializes
> sub-class VerifierNone. This reference can result in deadlock during class
> loading as per
> [https://docs.oracle.com/javase/specs/jls/se8/html/jls-12.html#jls-12.4.2].
> As of today, only RpcProgram use this instance and hence it is safe but if
> more clients start using this (specifically static ones), it has potential to
> bring deadlock. We should break this referencing before it is late.
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