Rudi Kershaw created FLINK-27754:
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Summary: Getting Flink config fails if multiple files in /lib
match flink-dist-*
Key: FLINK-27754
URL: https://issues.apache.org/jira/browse/FLINK-27754
Project: Flink
Issue Type: Improvement
Reporter: Rudi Kershaw
h3. Background
When adding jars to the {{/lib}} directory any extra jar files that match the
pattern {{flink-dist*.jar}} provoke an error when trying to use
{{BashJavaUtils}} to get JVM parameters and dynamic configurations in
{{{}config.sh{}}}. Although niche, this can be difficult to debug because there
is no error message to describe the specific issue.
We already print a useful error message if no {{flink-dist*.jar}} can be found
at all. This pull request adds another error message when more than one
{{flink-dist*.jar}} is found at this point.
h3. Reproduction Steps
# ./mvnw clean install -DskipTests -Dfast
# cp flink-dist-scala/target/flink-dist-scala_2.12-1.16-SNAPSHOT.jar
build-target/lib/
# build-target/bin/start-cluster.sh
# You should a vague error message "NoClassDefinition" or similar.
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