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[bug] Fix Flink TaskManager Metaspace retention via shared Hadoop ReflectionUtils cache #9827

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[bug] Fix Flink TaskManager Metaspace retention via shared Hadoop ReflectionUtils cache #9827

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2 changes: 1 addition & 1 deletion pom.xml
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Expand Up @@ -110,7 +110,7 @@ under the License.
<testcontainers.version>1.19.1</testcontainers.version>
<iceberg.version>1.6.1</iceberg.version>
<hudi.version>0.15.0</hudi.version>
<parquet.version>1.15.2</parquet.version>
<parquet.version>1.16.0</parquet.version>

@JingsongLi JingsongLi Sep 15, 2026

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[P1] Remove the shared-cache call instead of only upgrading Parquet

Parquet 1.16.0 still calls ReflectionUtils.newInstance(codecClass, ...) in CodecFactory.getCodec. Its constructor does not switch to DirectCodecFactory; that is a separate factory method. Paimon's vendored ParquetWriter also still constructs new CodecFactory(...). A probe against 1.16.0 leaves ZstandardCodec in ReflectionUtils.CONSTRUCTOR_CACHE after release(), so a shared Hadoop loader continues to retain the job-loaded codec class in the reported session-cluster scenario. Please fix that instantiation path and verify that the shared cache never gains the job class.

<orc.version>1.9.2</orc.version>
<protobuf-java.version>3.19.6</protobuf-java.version>
<roaringbitmap.version>1.2.1</roaringbitmap.version>
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