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GH-1239: Fix memory leak when C Data import hits allocator limit mid-array #1731

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GH-1239: Fix memory leak when C Data import hits allocator limit mid-array

GH-1239: Fix memory leak when C Data import hits allocator limit mid-array #1731

Re-run triggered July 21, 2026 05:35
@jbonofrejbonofre
#1240
sandeshkr419:fix/cdata-import-oom-leak
Status Failure
Total duration 20m 30s
Artifacts –

test.yml

on: pull_request
AMD64 integration
12m 17s
AMD64 integration
Matrix: macos
Matrix: ubuntu
Matrix: windows
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4 errors and 60 warnings
AMD64 Conda JNI JDK 17 Maven 3.9.9
Process completed with exit code 1.
AMD64 Conda JNI JDK 21 Maven 3.9.9
Process completed with exit code 1.
AMD64 Conda JNI JDK 23 Maven 3.9.9
Process completed with exit code 1.
AMD64 integration
Process completed with exit code 1.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20960
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20719
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20710
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20632
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18567
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18535
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18487
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18235
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18226
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18148
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L58
[removal] AccessController in java.security has been deprecated and marked for removal
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L66
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AArch64 macOS latest Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20960
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20719
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20710
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20632
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18567
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18535
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18487
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18235
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18226
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18148
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L58
[removal] AccessController in java.security has been deprecated and marked for removal
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L66
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 macOS 15-intel Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20960
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20719
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20710
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L20632
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18567
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18535
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18487
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18235
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18226
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/flight/flight-core/target/generated-sources/protobuf/java/org/apache/arrow/flight/impl/Flight.java#L18148
[SameNameButDifferent] The name `SessionOptionsDefaultEntryHolder` refers to [org.apache.arrow.flight.impl.Flight.SetSessionOptionsRequest.SessionOptionsDefaultEntryHolder, org.apache.arrow.flight.impl.Flight.GetSessionOptionsResult.SessionOptionsDefaultEntryHolder] within this file. It may be confusing to have the same name refer to multiple types. Consider qualifying them for clarity.
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L58
[removal] AccessController in java.security has been deprecated and marked for removal
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L66
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L38
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release
AMD64 Windows Server 2022 Java JDK 17: build/memory/memory-core/src/main/java/org/apache/arrow/memory/util/MemoryUtil.java#L28
Unsafe is internal proprietary API and may be removed in a future release