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From "Tatu Saloranta (Jira)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-16855) Replace minor use of `json-simple` with Jackson
Date Tue, 17 Aug 2021 04:24:00 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-16855?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17400117#comment-17400117
] 

Tatu Saloranta commented on CASSANDRA-16855:
--------------------------------------------

Created PR [https://github.com/apache/cassandra/pull/1147] which contains all changes to remove
`json-simple` dependency.

> Replace minor use of `json-simple` with Jackson
> -----------------------------------------------
>
>                 Key: CASSANDRA-16855
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-16855
>             Project: Cassandra
>          Issue Type: Improvement
>          Components: Dependencies, Local/Other, Tool/nodetool
>            Reporter: Tatu Saloranta
>            Assignee: Tatu Saloranta
>            Priority: Normal
>             Fix For: 4.x
>
>
> Jackson library is used for most JSON reading/writing, but there are couple of places
where older "json-simple" library is used, mostly for diagnostics output. Replacing those
minor usages would allow removal of a dependency, one for which the last release was made
in 2012.
> Places where json-simple is used are:
>  * src/java/org/apache/cassandra/db/ColumnFamilyStore.java
>  * src/java/org/apache/cassandra/db/commitlog/CommitLogDescriptor.java
>  * src/java/org/apache/cassandra/hints/HintsDescriptor.java
>  * src/java/org/apache/cassandra/tools/nodetool/stats/StatsPrinter.java
> (and some matching usage in couple of test classes)
> I can take a stab at replacing these uses; it also looks like test coverage may be spotty
for some (StatsPrinter json/yaml part has no tests for example).
> It is probably best to target this for "trunk" (4.1?).
>  



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