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[1.20][FLINK-37100][tests] Fix test_netty_shuffle_memory_control.sh in CI for JDK11+ #25955

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Original file line number Diff line number Diff line change
Expand Up @@ -36,6 +36,10 @@ set_config_key "taskmanager.network.netty.num-arenas" "1"
# Limits the direct memory to be one chunk (4M) plus some margins.
set_config_key "taskmanager.memory.framework.off-heap.size" "7m"

# Enable reflection for Netty4, which reduces its memory footprint on JDK11+,
# so the allocated memory originally assumed for Netty3 will still be sufficient.
set_config_key "env.java.opts.taskmanager" "-Dorg.apache.flink.shaded.netty4.io.netty.tryReflectionSetAccessible=true"

# Starts the cluster which includes one TaskManager.
start_cluster

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