[jira] [Created] (CASSANDRA-16855) Replace minor use of `json-simple` with Jackson

["Tatu Saloranta (Jira)" <ji...@apache.org>]

Tatu Saloranta created CASSANDRA-16855:
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             Summary: 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


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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