Inspecting the implementation of `os::numa_get_leaf_groups`, one can see all node-id are non-negative, iterated from 0 to highest_node_number.
Therefore, use `uint` to record node-id.
Therefore, use `uint` to record node-id.
- relates to
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JDK-8316098 Revise signature of numa_get_leaf_groups
- Resolved
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JDK-8316115 Parallel: Fix -Wconversion warnings around NUMA node ID
- Resolved