ajantha-bhat commented on code in PR #7642:
URL: https://github.com/apache/iceberg/pull/7642#discussion_r1198926511
##########
flink/v1.17/build.gradle:
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@@ -152,6 +152,9 @@
project(":iceberg-flink:iceberg-flink-runtime-${flinkMajorVersion}") {
}
implementation(project(':iceberg-nessie')) {
exclude group: 'com.google.code.findbugs', module: 'jsr305'
+ // Nessie brings Jackson dependencies of version 2.15.0 or later.
+ // These are multi-release jars and doesn't work with Java-8 shadowJar
plugin.
Review Comment:
Oh, if we just bump the Nessie version, the build will fail for shadowJar
task for runtime hive, runtime flink, runtime spark with the error mentioned
[here](https://github.com/apache/iceberg/actions/runs/5013686487/jobs/8987072724)
The reason for failure is Nessie brings Jackson 2.15.1 as a dependency for
runtime shadow jar tasks. But Jackson 2.15.0 onwards releases [multi-release
jars](https://github.com/FasterXML/jackson-core/issues/897) (packs multiple
versions of java classes). Hence, the shadowJar tasks running on java 8 fails
to build the uber jar.
So, I am excluding Nessie's Jackson version (2.15.1). So, it uses Iceberg's
jackson version 2.14.1 for building the uber jar.
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