From 53d4325344a97373d0fdb811c5c336e558f1df2b Mon Sep 17 00:00:00 2001
From: "dependabot[bot]" <49699333+dependabot[bot]@users.noreply.github.com>
Date: Mon, 12 Jan 2026 17:29:09 +0000
Subject: [PATCH 1/2] Bump com.puppycrawl.tools:checkstyle from 12.3.1 to
 13.0.0

Bumps [com.puppycrawl.tools:checkstyle](https://github.com/checkstyle/checkstyle) from 12.3.1 to 13.0.0.
- [Release notes](https://github.com/checkstyle/checkstyle/releases)
- [Commits](https://github.com/checkstyle/checkstyle/compare/checkstyle-12.3.1...checkstyle-13.0.0)

---
updated-dependencies:
- dependency-name: com.puppycrawl.tools:checkstyle
  dependency-version: 13.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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 09807306..ca6ebf3a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -141,7 +141,7 @@
                     <dependency>
                         <groupId>com.puppycrawl.tools</groupId>
                         <artifactId>checkstyle</artifactId>
-                        <version>12.3.1</version>
+                        <version>13.0.0</version>
                     </dependency>
                 </dependencies>
                 <executions>

From 65f7ef37ccc32c63bb5e2fe438a8c043c8ccd159 Mon Sep 17 00:00:00 2001
From: William Storey <wstorey@maxmind.com>
Date: Tue, 13 Jan 2026 11:31:08 -0800
Subject: [PATCH 2/2] Move checkstyle to profile activated on Java 21+

Checkstyle 13.0.0 requires Java 21+. Move the plugin into a profile
that only activates on Java 21+, so `mvn test` works on Java 17
without loading incompatible classes.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 pom.xml | 65 +++++++++++++++++++++++++++++++++------------------------
 1 file changed, 38 insertions(+), 27 deletions(-)

diff --git a/pom.xml b/pom.xml
index ca6ebf3a..542fc6cd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -127,33 +127,6 @@
                   </execution>
                 </executions>
             </plugin>
-            <plugin>
-                <groupId>org.apache.maven.plugins</groupId>
-                <artifactId>maven-checkstyle-plugin</artifactId>
-                <version>3.6.0</version>
-                <configuration>
-                    <consoleOutput>true</consoleOutput>
-                    <configLocation>checkstyle.xml</configLocation>
-                    <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
-                    <violationSeverity>warning</violationSeverity>
-                </configuration>
-                <dependencies>
-                    <dependency>
-                        <groupId>com.puppycrawl.tools</groupId>
-                        <artifactId>checkstyle</artifactId>
-                        <version>13.0.0</version>
-                    </dependency>
-                </dependencies>
-                <executions>
-                    <execution>
-                        <id>test</id>
-                        <phase>test</phase>
-                        <goals>
-                            <goal>check</goal>
-                        </goals>
-                    </execution>
-                </executions>
-            </plugin>
             <plugin>
                 <artifactId>maven-javadoc-plugin</artifactId>
                 <version>3.12.0</version>
@@ -367,5 +340,43 @@
                 </plugins>
             </build>
         </profile>
+        <!-- Checkstyle 13+ requires Java 21+. -->
+        <profile>
+            <id>checkstyle-jdk21</id>
+            <activation>
+                <jdk>[21,)</jdk>
+            </activation>
+            <build>
+                <plugins>
+                    <plugin>
+                        <groupId>org.apache.maven.plugins</groupId>
+                        <artifactId>maven-checkstyle-plugin</artifactId>
+                        <version>3.6.0</version>
+                        <configuration>
+                            <consoleOutput>true</consoleOutput>
+                            <configLocation>checkstyle.xml</configLocation>
+                            <suppressionsLocation>checkstyle-suppressions.xml</suppressionsLocation>
+                            <violationSeverity>warning</violationSeverity>
+                        </configuration>
+                        <dependencies>
+                            <dependency>
+                                <groupId>com.puppycrawl.tools</groupId>
+                                <artifactId>checkstyle</artifactId>
+                                <version>13.0.0</version>
+                            </dependency>
+                        </dependencies>
+                        <executions>
+                            <execution>
+                                <id>checkstyle</id>
+                                <phase>test</phase>
+                                <goals>
+                                    <goal>check</goal>
+                                </goals>
+                            </execution>
+                        </executions>
+                    </plugin>
+                </plugins>
+            </build>
+        </profile>
     </profiles>
 </project>