Maven: Inconsistent formatting of Java (google AOSP style) with plugin and google-java-format.jar

[serpro69]

Summary

I have google-java-format intellij plugin installed and configured to use AOSP style, and spotless maven plugin that is configured with AOSP as well.
The versions of both the intellij plugin and the google-java-format version in spotless are the same, so it's unlikely this is a version discrepancy.
Reformatting code in intellij makes the plugin report formatting issues:

[ERROR] Failed to execute goal com.diffplug.spotless:spotless-maven-plugin:2.39.0:check (default) on project template-spring-boot: The following files had format violations:
[ERROR]     src/main/java/no/wlcm/tech/config/OpenApiConfig.java
[ERROR]         @@ -6,12 +6,10 @@
[ERROR]          import·io.swagger.v3.oas.models.security.SecurityRequirement;
[ERROR]          import·io.swagger.v3.oas.models.security.SecurityScheme;
[ERROR]          import·io.swagger.v3.oas.models.servers.Server;
[ERROR]         -
[ERROR]         +import·java.util.stream.Stream;
[ERROR]          import·org.springframework.context.annotation.Bean;
[ERROR]          import·org.springframework.context.annotation.Configuration;
[ERROR]
[ERROR]         -import·java.util.stream.Stream;
[ERROR]         -
[ERROR]          @Configuration
[ERROR]          public·class·OpenApiConfig·{
[ERROR]
[ERROR] Run 'mvn spotless:apply' to fix these violations.
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

This is also the diff after running mvn spotless:apply

@@ -6,12 +6,10 @@ import io.swagger.v3.oas.models.info.Info;
 import io.swagger.v3.oas.models.security.SecurityRequirement;
 import io.swagger.v3.oas.models.security.SecurityScheme;
 import io.swagger.v3.oas.models.servers.Server;
-
+import java.util.stream.Stream;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;

-import java.util.stream.Stream;
-
 @Configuration
 public class OpenApiConfig {

As an extra test, I downloaded the google-java-format jar for v1.21.0 ran java -jar /tmp/google-java-format-1.21.0-all-deps.jar -r --aosp OpenApiConfig.java and it does no modifications after reformatting with intellij plugin:

➜ java -jar /tmp/google-java-format-1.21.0-all-deps.jar --aosp OpenApiConfig.java
package foo;

import io.swagger.v3.oas.models.Components;
import io.swagger.v3.oas.models.OpenAPI;
import io.swagger.v3.oas.models.info.Info;
import io.swagger.v3.oas.models.security.SecurityRequirement;
import io.swagger.v3.oas.models.security.SecurityScheme;
import io.swagger.v3.oas.models.servers.Server;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import java.util.stream.Stream;

// rest omitted for brevity

So this hints at the spotless plugin, either something it does beyond applying google-java-format, misconfiguration or?

System Info

➜ ./mvnw -version
Apache Maven 3.9.5 (57804ffe001d7215b5e7bcb531cf83df38f93546)
Maven home: /home/sergio/.m2/wrapper/dists/apache-maven-3.9.5-bin/32db9c34/apache-maven-3.9.5
Java version: 17.0.10, vendor: Eclipse Adoptium, runtime: /home/sergio/.sdkman/candidates/java/17.0.10-tem
Default locale: en_US, platform encoding: UTF-8
OS name: "linux", version: "6.6.10-76060610-generic", arch: "amd64", family: "unix"

➜ lsb_release -a
No LSB modules are available.
Distributor ID: Pop
Description:    Pop!_OS 22.04 LTS
Release:        22.04
Codename:       jammy

Plugin Info

            <plugin>
                <groupId>com.diffplug.spotless</groupId>
                <artifactId>spotless-maven-plugin</artifactId>
                <version>2.39.0</version>
                <executions>
                    <execution>
                        <goals>
                            <goal>check</goal>
                        </goals>
                        <phase>validate</phase>
                    </execution>
                </executions>
                <configuration>
                    <formats>
                        <format>
                            <includes>
                                <include>*.md</include>
                                <include>.gitignore</include>
                            </includes>
                            <trimTrailingWhitespace/>
                            <endWithNewline/>
                            <indent>
                                <spaces>true</spaces>
                                <spacesPerTab>4</spacesPerTab>
                            </indent>
                        </format>
                    </formats>
                    <java>
                        <googleJavaFormat>
                            <version>1.21.0</version>
                            <style>AOSP</style>
                            <reflowLongStrings>true</reflowLongStrings>
                        </googleJavaFormat>
                        <removeUnusedImports/>
                        <formatAnnotations/>
                    </java>
                </configuration>
            </plugin>

Tried to minimize the java format configuration to:

                    <java>
                        <googleJavaFormat>
                            <version>${google-java-format.version}</version>
                            <style>AOSP</style>
                        </googleJavaFormat>
                    </java>

but that produces the same results