MINOR: revisit LogValidatorTest#checkRecompression

[chia7712]

from #15904 (comment)

Committer Checklist (excluded from commit message)

• Verify design and implementation
• Verify test coverage and CI build status
• Verify documentation (including upgrade notes)

[chia7712]

ping @junrao @vincent81jiang

[junrao]

@chia7712 : Thanks for the PR. Just a couple of minor comments.

[chia7712]

@junrao thanks for all your reviews :)

[junrao]

@chia7712 : Thanks for the updated PR. LGTM.

The test failures seem unrelated, but it would be useful to file jiras for the untracked ones.

[chia7712]

test	jira
testDelayedConfigurationOperations	https://issues.apache.org/jira/browse/KAFKA-16773
testOffsetTranslationBehindReplicationFlow	https://issues.apache.org/jira/browse/KAFKA-15197
testAlterSinkConnectorOffsets	https://issues.apache.org/jira/browse/KAFKA-15892
testElectPreferredLeaders	https://issues.apache.org/jira/browse/KAFKA-8458
testSeparateOffsetsTopic	https://issues.apache.org/jira/browse/KAFKA-14089
testNoConsumeWithoutDescribeAclViaSubscribe	https://issues.apache.org/jira/browse/KAFKA-9655
testNoConsumeWithDescribeAclViaSubscribe	https://issues.apache.org/jira/browse/KAFKA-7646
testCreateUserWithDelegationToken	https://issues.apache.org/jira/browse/KAFKA-16501
testDescribeTokenForOtherUserFails	https://issues.apache.org/jira/browse/KAFKA-15411
testCoordinatorFailover	https://issues.apache.org/jira/browse/KAFKA-16024
shouldWorkWithUncleanShutdownWipeOutStateStore	https://issues.apache.org/jira/browse/KAFKA-16502
shouldCloseAllTaskProducersOnCloseIfEosEnabled	https://issues.apache.org/jira/browse/KAFKA-16774
testTaskRequestWithOldStartMsGetsUpdated	https://issues.apache.org/jira/browse/KAFKA-8115
testSyncTopicConfigs	https://issues.apache.org/jira/browse/KAFKA-14453
testReplicateSourceDefault	https://issues.apache.org/jira/browse/KAFKA-15292
testCreateTokenForOtherUserFails	https://issues.apache.org/jira/browse/KAFKA-15411
testDescribeTokenForOtherUserFails	https://issues.apache.org/jira/browse/KAFKA-15411
testCreateExistingTopicsThrowTopicExistsException	https://issues.apache.org/jira/browse/KAFKA-16775
testLowMaxFetchSizeForRequestAndPartition	https://issues.apache.org/jira/browse/KAFKA-16494
testTaskRequestWithOldStartMsGetsUpdated	https://issues.apache.org/jira/browse/KAFKA-8115