Jayesh Lalwani created FLINK-39640:
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Summary: Bump Flink 1.20.0 to 1.20.3 and upgrade
maven-shade-plugin to 3.6.0
Key: FLINK-39640
URL: https://issues.apache.org/jira/browse/FLINK-39640
Project: Flink
Issue Type: Bug
Components: Connectors / Hive
Affects Versions: 3.0.0
Reporter: Jayesh Lalwani
The Flink Hive connector CI is broken because flink-1.20.0-bin-scala_2.12.tgz
has been removed from Apache's download mirrors (Apache only hosts the latest
patch release per minor version). This prevents CI from running end-to-end
tests.
Bumping to Flink 1.20.3 fixes the binary download but introduces a transitive
dependency change: flink-parquet:1.20.3 pulls in parquet-hadoop:1.15.2 (up from
1.13.1 in 1.20.0). The parquet 1.15.x line includes multi-release JAR entries
with Java 17 and Java 22 class files under META-INF/versions/. The current
maven-shade-plugin:3.2.4 (inherited from flink-connector-parent) cannot process
these entries, failing with:
{code}
Unsupported class file major version 61
{code}
Fix:
1. Bump flink.version from 1.20.0 to 1.20.3
2. Override maven-shade-plugin version to 3.6.0 (supports multi-release JARs)
3. Update CI workflow to download flink-1.20.3 binary
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