Test suite failures on Java 21

[vivekchavan14]

Environment:
• OS: Ubuntu 24.04.2 LTS
• Java: OpenJDK 21.0.8 (Ubuntu 21.0.8+9-Ubuntu-0ubuntu124.04.1)
• Gradle: 8.8
• AutoMQ Commit: 014d2d2 (latest main branch)
• Command: ./gradlew build

Issue Description:
The test suite fails with 132 total test failures when building on Java 21. The build succeeds when tests are skipped (./gradlew build -x test), indicating this is purely a test environment issue.

Failure Summary:
• Metadata module: 131/931 tests failing (85% success rate)
• Connect API module: 1/313 tests failing (99% success rate)

Major Failing Test Classes:
• ClusterControlManagerTest (21/22 tests failing)
• ReplicationControlManagerTest (64/66 tests failing)
• QuorumControllerTest (24/34 tests failing)
• ProducerIdControlManagerTest (all 5 tests failing)
• QuorumControllerMetricsIntegrationTest (all 5 tests failing)
• ValuesTest.shouldParseStringListWithMultipleElementTypes() (connect-api)

Sample Error:

org.opentest4j.AssertionFailedError: expected: <MAP> but was: <ARRAY>
    at org.apache.kafka.connect.data.ValuesTest.assertParseStringArrayWithNoSchema(ValuesTest.java:478)

Workaround:
Build succeeds with

./gradlew build -x test

[superhx]

Hi, The original Apache Kafka test cases have not been fully adapted yet. Therefore, it is necessary to run the test cases through ./gradlew build -x test.

Welcome to participate in the test fix

[vivekchavan14]

Thanks for the clarification!
I'll proceed with

./gradlew build -x test,

I'll try to fix test-cases