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89 changes: 89 additions & 0 deletions dev/check-arrow-c-shading.sh
Original file line number Diff line number Diff line change
@@ -0,0 +1,89 @@
#!/usr/bin/env bash
# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with
# this work for additional information regarding copyright ownership.
# The ASF licenses this file to You under the Apache License, Version 2.0
# (the "License"); you may not use this file except in compliance with
# the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Verify the bundled gluten-velox jar's Arrow C-Data classes have method
# signatures referencing the *unshaded* org.apache.arrow.memory.BufferAllocator
# and org.apache.arrow.vector.* types — not the gluten-shaded copies.
#
# Background: org.apache.arrow.c.* must NOT be relocated (its native JNI binds
# to the original class names), but its public API methods accept/return
# org.apache.arrow.memory.* and org.apache.arrow.vector.* types. Those types
# must therefore also stay unshaded in the bundle, otherwise the bundled
# ArrowArrayStream/ArrowSchema get re-bound to the shaded BufferAllocator at
# compile time and any caller passing a vanilla Apache Arrow allocator hits
# `NoSuchMethodError`. See gluten#12225.
#
# Usage:
# dev/check-arrow-c-shading.sh <path-to-gluten-velox-bundle.jar>
#
# Exit codes:
# 0 — bundle is well-shaded (Arrow C-Data API uses public Apache Arrow types)
# 1 — bundle is broken (Arrow C-Data API references gluten-shaded types)
# 2 — usage / setup error

set -euo pipefail

JAR="${1:?usage: $0 <path-to-gluten-velox-bundle.jar>}"
if [[ ! -f "$JAR" ]]; then
echo "error: jar not found: $JAR" >&2
exit 2
fi

if ! command -v javap >/dev/null; then
echo "error: javap not found on PATH" >&2
exit 2
fi

WORKDIR=$(mktemp -d)
trap 'rm -rf "$WORKDIR"' EXIT

# Classes whose public API touches the unshaded boundary.
CLASSES=(
"org/apache/arrow/c/ArrowArrayStream"
"org/apache/arrow/c/ArrowSchema"
"org/apache/arrow/c/ArrowArray"
"org/apache/arrow/c/Data"
)

failures=0
for cls in "${CLASSES[@]}"; do
if ! unzip -p "$JAR" "${cls}.class" > "$WORKDIR/$(basename "$cls").class" 2>/dev/null; then
echo " SKIP $cls (not in bundle)"
continue
fi
signatures=$(javap -p "$WORKDIR/$(basename "$cls").class" 2>/dev/null || true)
# Any method signature mentioning the gluten-shaded Arrow path is the bug.
bad=$(echo "$signatures" | grep -E "org\.apache\.gluten\.shaded\.org\.apache\.arrow\.(memory|vector)\." || true)
if [[ -n "$bad" ]]; then
echo " FAIL $cls — public API references gluten-shaded Arrow types:"
echo "$bad" | sed 's/^/ /'
failures=$((failures + 1))
else
echo " OK $cls"
fi
done

if (( failures > 0 )); then
echo
echo "Bundle has $failures Arrow C-Data class(es) with shaded API types."
echo "See gluten#12225 for context. Update package/pom.xml's"
echo "<relocation org.apache.arrow> excludes to also exclude"
echo "org.apache.arrow.memory.** and org.apache.arrow.vector.**."
exit 1
fi

echo
echo "All Arrow C-Data classes use unshaded public Apache Arrow API. ✓"
43 changes: 42 additions & 1 deletion package/pom.xml
Original file line number Diff line number Diff line change
Expand Up @@ -121,10 +121,22 @@
<relocation>
<pattern>org.apache.arrow</pattern>
<shadedPattern>${gluten.shade.packageName}.org.apache.arrow</shadedPattern>
<!--arrow's C and dataset wrapper refers to the original class path, so we should not relocate here-->
<!--
arrow's C and dataset wrappers refer to the original class
path, so they must not be relocated. Their public APIs also
take and return org.apache.arrow.memory.* and
org.apache.arrow.vector.* types, so those packages must also
stay unshaded — otherwise the bundled (unshaded)
ArrowArrayStream/ArrowSchema get compiled against the
relocated BufferAllocator/VectorSchemaRoot, producing
`NoSuchMethodError` for any caller passing a vanilla
Apache Arrow allocator. See #12225.
-->
<excludes>
<exclude>org.apache.arrow.c.*</exclude>
<exclude>org.apache.arrow.c.jni.*</exclude>
<exclude>org.apache.arrow.memory.**</exclude>
<exclude>org.apache.arrow.vector.**</exclude>
Comment on lines +138 to +139
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nit: Should we directly exclude all arrow packages? E.g., org.apache.arrow.*

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The full org.apache.arrow.* exclusion would lose gluten's isolation from the user's Arrow version everywhere, not just on the C-Data boundary. The C-Data classes have to be unshaded because their JNI native lib hardcodes the original class names; arrow.memory.* and arrow.vector.* follow because they appear in arrow.c.* public method signatures. Anything else under org.apache.arrow.* (flight, algorithm, adapter, etc.) is internal to gluten's columnar batch handling and safer to keep shaded so it doesn't conflict with user Arrow. The narrow exclusion is the minimum that makes the public C-Data API self-consistent without giving up isolation elsewhere.

<exclude>org.apache.arrow.dataset.**</exclude>
</excludes>
</relocation>
Expand Down Expand Up @@ -287,6 +299,35 @@
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>exec-maven-plugin</artifactId>
<executions>
<execution>
<!--
Verify that the bundled Arrow C-Data classes have public method
signatures referencing the unshaded Apache Arrow API
(org.apache.arrow.memory.*, org.apache.arrow.vector.*) and not
the gluten-shaded copies. Catches a regression where shading
relocates classes that the unshaded org.apache.arrow.c.* API
transitively depends on, producing a bundle whose public Arrow
C-Data API is incompatible with vanilla Apache Arrow callers
(gluten#12225).
-->
<id>verify-arrow-c-shading</id>
<goals>
<goal>exec</goal>
</goals>
<phase>verify</phase>
<configuration>
<executable>${project.basedir}/../dev/check-arrow-c-shading.sh</executable>
<arguments>
<argument>${project.build.directory}/${project.build.finalName}.jar</argument>
</arguments>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

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