[FLINK-34040] ScalaSerializersMigrationTest.testStableAnonymousClassnameGeneration fails in GHA with JDK 17 and 21

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.19.0
• Component/s: API / Scala, Build System / CI
• Labels: github-actions test-stability
• Assignee: Unassigned
• Reporter: Matthias Pohl
• Created: 09/Jan/24 08:58
• Updated: 12/Jan/24 07:27
• Resolved: 12/Jan/24 07:27

Description

Error: 13:05:23 13:05:23.538 [ERROR] Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.375 s <<< FAILURE! -- in org.apache.flink.api.scala.migration.ScalaSerializersMigrationTest
Error: 13:05:23 13:05:23.538 [ERROR] org.apache.flink.api.scala.migration.ScalaSerializersMigrationTest.testStableAnonymousClassnameGeneration -- Time elapsed: 0.371 s <<< FAILURE!
Jan 07 13:05:23 org.junit.ComparisonFailure: expected:<...MigrationTest$$anon$[8]> but was:<...MigrationTest$$anon$[1]>
Jan 07 13:05:23 	at org.junit.Assert.assertEquals(Assert.java:117)
Jan 07 13:05:23 	at org.junit.Assert.assertEquals(Assert.java:146)
Jan 07 13:05:23 	at org.apache.flink.api.scala.migration.ScalaSerializersMigrationTest.testStableAnonymousClassnameGeneration(ScalaSerializersMigrationTest.scala:60)
Jan 07 13:05:23 	at java.base/java.lang.reflect.Method.invoke(Method.java:580)

The error only happens in the master GHA nightly for JDK 17 and 21.