KAFKA-10787: Apply spotless to group-coordinator and group-coordinator-api

[gongxuanzhang]

This PR is sub PR from #16097.
It is part of a series of changes to progressively apply [spotless plugin(import-order)] across all modules. In this step, the plugin is activated in the

• group-coordinator-api
• group-coordinator

Module and history

Please see the table below for the historical changes related to applying the Spotless plugin

module	apply	related PR
:clients	❌	future
:connect:api	✅	#16299
:connect:basic-auth-extension	✅	#16299
:connect:file	✅	#16299
:connect:json	✅	#16299
:connect:mirror	✅	#16299
:connect:mirror-client	✅	#16299
:connect:runtime	❌	future
:connect:test-plugins	✅	#16299
:connect:transforms	✅	#16299
:core	❌	future
:examples	✅	#16296
:generator	✅	#16296
:group-coordinator:group-coordinator-api	✅	#16298
:group-coordinator	✅	#16298
:jmh-benchmarks	✅	#16296
:log4j-appender	✅	#16296
:metadata	✅	#16297
:server	✅	#16297
:shell	✅	#16296
:storage	✅	#16297
:storage:storage-api	✅	#16297
:streams	❌	future
:streams:examples	❌	future
:streams:streams-scala	❌	future
:streams:test-utils	❌	future
:streams:upgrade-system-tests-0100	❌	future
:streams:upgrade-system-tests-0101	❌	future
:streams:upgrade-system-tests-0102	❌	future
:streams:upgrade-system-tests-0110	❌	future
:streams:upgrade-system-tests-10	❌	future
:streams:upgrade-system-tests-11	❌	future
:streams:upgrade-system-tests-20	❌	future
:streams:upgrade-system-tests-21	❌	future
:streams:upgrade-system-tests-22	❌	future
:streams:upgrade-system-tests-23	❌	future
:streams:upgrade-system-tests-24	❌	future
:streams:upgrade-system-tests-25	❌	future
:streams:upgrade-system-tests-26	❌	future
:streams:upgrade-system-tests-27	❌	future
:streams:upgrade-system-tests-28	❌	future
:streams:upgrade-system-tests-30	❌	future
:streams:upgrade-system-tests-31	❌	future
:streams:upgrade-system-tests-32	❌	future
:streams:upgrade-system-tests-33	❌	future
:streams:upgrade-system-tests-34	❌	future
:streams:upgrade-system-tests-35	❌	future
:streams:upgrade-system-tests-36	❌	future
:streams:upgrade-system-tests-37	❌	future
:trogdor	✅	#16296
:raft	✅	#16278
:server-common	✅	#16172
:transaction-coordinator	✅	#16172
:tools	✅	#16262
:tools:tools-api	✅	#16262

How to test:

We can run ./gradlew spotlessCheck check for code that does not meet requirements.
If we get report that error , we can run ./gradlew spotlessApply to review my code.
In this PR, all change(exclude build.gradle) byspotlessApply`

[chia7712]

@gongxuanzhang please add spotlessJava.dependsOn 'processMessages' to the module having processMessages task. Otherwise, spotless may ignore those generated code

[gongxuanzhang]

@gongxuanzhang please add spotlessJava.dependsOn 'processMessages' to the module having processMessages task. Otherwise, spotless may ignore those generated code

I updated it , let’s wait CI

[chia7712]

@gongxuanzhang could you please add targetExclude '**/generated/**.java' to skip generated code? We should keep the generated code as they are.

[gongxuanzhang]

It seems to be working

[gongxuanzhang]

Failed test

JDK 21 and Scala 2.13

test	jira
testSyncTopicConfigs	https://issues.apache.org/jira/browse/KAFKA-14971
testConsumptionWithBrokerFailures	https://issues.apache.org/jira/browse/KAFKA-15146
testCoordinatorFailover	https://issues.apache.org/jira/browse/KAFKA-9007
shouldBootstrapTwoBrokersWithFollowerThrottle	https://issues.apache.org/jira/browse/KAFKA-4265

JDK 8 and Scala 2.12

test	jira
testAlterSinkConnectorOffsetsZombieSinkTasks	https://issues.apache.org/jira/browse/KAFKA-15917
shouldRestoreState	https://issues.apache.org/jira/browse/KAFKA-10405

[gongxuanzhang]

@chia7712 plz take a look

[chia7712]

LGTM