Yun Gao created FLINK-25972:
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Summary:
org.apache.calcite.rel.metadata.JaninoRelMetadataProvider#HANDLERS might cause
class leaks
Key: FLINK-25972
URL: https://issues.apache.org/jira/browse/FLINK-25972
Project: Flink
Issue Type: Sub-task
Components: Table SQL / Planner
Affects Versions: 1.15.0
Reporter: Yun Gao
JaninoRelMetadataProvider -> static field HANDLERS -> generated class
GeneratedMetadataHandler_ColumnNullCount loaded by
org.codehaus.janino.ByteArrayClassLoader. This cache seems to use the strong
references.
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