com.fasterxml.jackson.core.jackson dependency harmonization
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Description
Parquet as a whole depends on many jackson versions, also legacy release.
there are 2 overlapping dependencies on **com.fasterxml.jackson.core** bundles:
2.7.1, 2.3.1 and 2.3.0
[INFO] +- org.apache.arrow:arrow-vector:jar:0.1.0:compile
[INFO] | +- joda-time:joda-time:jar:2.9:compile
[INFO] | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.7.1:compile
[INFO] | +- com.fasterxml.jackson.core:jackson-databind:jar:2.7.1:compile
[INFO] | | \- com.fasterxml.jackson.core:jackson-core:jar:2.7.1:compile
and
[INFO] +- com.fasterxml.jackson.core:jackson-databind:jar:2.3.1:compile
[INFO] | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.3.0:compile
[INFO] | \- com.fasterxml.jackson.core:jackson-core:jar:2.3.1:compile
It would be better to have only 1 non overlapping dependency tree from jackson.
Then other submodules of Parquet depend on old "codehaus" release. These should be harmonized as well, at least those that do not need that version to cope with other third party libraries that need the old one.
I spotted this one.
**Parquet jackson**
[INFO] org.apache.parquet:parquet-jackson:jar:1.9.1-SNAPSHOT
[INFO] +- org.codehaus.jackson:jackson-mapper-asl:jar:1.9.13:compile
[INFO] +- org.codehaus.jackson:jackson-core-asl:jar:1.9.13:compile
**Reporter**: [Davide Gesino](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=dgesino)
#### Related issues:
- [Remove Jackson classes from public API](https://issues.apache.org/jira/browse/AVRO-1605) (is blocked by)
**Note**: *This issue was originally created as [PARQUET-1173](https://issues.apache.org/jira/browse/PARQUET-1173). Please see the [migration documentation](https://issues.apache.org/jira/browse/PARQUET-2502) for further details.*
Contributor guide
No contributing guide indexed for this repository
Research direction
Start by inspecting the Maven dependency trees for org.apache.arrow:arrow-vector and org.apache.parquet:parquet-jackson, using the Jackson versions listed in the issue as the baseline. Check which old Codehaus dependencies are required by third-party libraries. Done means reducing avoidable overlapping Jackson versions while preserving necessary compatibility exceptions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- build-system
- Issue type
- Refactor
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 30/100