From 671f71f48a12a95737e1e588b2943047bba47762 Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 7 Sep 2026 06:44:27 +0000
Subject: [PATCH 1/2] MINOR: Bump org.apache.parquet:parquet-variant from
 1.17.1 to 1.18.1

Bumps [org.apache.parquet:parquet-variant](https://github.com/apache/parquet-java) from 1.17.1 to 1.18.1.
- [Release notes](https://github.com/apache/parquet-java/releases)
- [Changelog](https://github.com/apache/parquet-java/blob/master/CHANGES.md)
- [Commits](https://github.com/apache/parquet-java/compare/apache-parquet-1.17.1...apache-parquet-1.18.1)

---
updated-dependencies:
- dependency-name: org.apache.parquet:parquet-variant
  dependency-version: 1.18.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
---
 pom.xml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pom.xml b/pom.xml
index 0552a02c72..cb2f3d087a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -105,7 +105,7 @@ under the License.
     <dep.hadoop.version>3.5.0</dep.hadoop.version>
     <dep.fbs.version>25.2.10</dep.fbs.version>
     <dep.avro.version>1.12.1</dep.avro.version>
-    <dep.parquet.version>1.17.1</dep.parquet.version>
+    <dep.parquet.version>1.18.1</dep.parquet.version>
     <dep.mockito-bom.version>5.23.0</dep.mockito-bom.version>
     <arrow.vector.classifier/>
     <forkCount>2</forkCount>

From 983dd8c182eea226ea1b32ef75bfd5457aa7b32e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?JB=20Onofr=C3=A9?= <jbonofre@apache.org>
Date: Mon, 7 Sep 2026 15:50:33 +0200
Subject: [PATCH 2/2] MINOR: Fix TestVariantVector#testGetObject for
 parquet-variant 1.18.1

parquet-variant 1.18.1 added eager validation of the variant metadata
header in the Variant constructor. The test's placeholder metadata
bytes no longer decode as a structurally valid header, so
getObject() throws IllegalArgumentException. Use a valid
single-byte (version 1, empty dictionary) metadata header instead.
---
 .../org/apache/arrow/variant/extension/TestVariantVector.java | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arrow-variant/src/test/java/org/apache/arrow/variant/extension/TestVariantVector.java b/arrow-variant/src/test/java/org/apache/arrow/variant/extension/TestVariantVector.java
index 1c172e304f..c68aedaa21 100644
--- a/arrow-variant/src/test/java/org/apache/arrow/variant/extension/TestVariantVector.java
+++ b/arrow-variant/src/test/java/org/apache/arrow/variant/extension/TestVariantVector.java
@@ -769,7 +769,9 @@ void testGetObject() {
         ArrowBuf metadataBuf = allocator.buffer(10);
         ArrowBuf valueBuf = allocator.buffer(10)) {
 
-      byte[] metadata = new byte[] {1, 2};
+      // Version 1, empty dictionary (single header byte) - a structurally valid variant
+      // metadata, since getObject() eagerly parses the metadata header.
+      byte[] metadata = new byte[] {1};
       byte[] value = new byte[] {3, 4, 5};
       metadataBuf.setBytes(0, metadata);
       valueBuf.setBytes(0, value);