ANTLR Version Mismatch

[jas32096]

Describe the bug
After upgrading from confluentinc/cp-ksqldb-server:6.1.0 to confluentinc/cp-ksqldb-server:7.1.0 I've noticed warnings about ANTLR in the logs and after running SHOW CONNECTORS

ANTLR Tool version 4.7.1 used for code generation does not match the current runtime version 4.9.2
ANTLR Runtime version 4.7.1 used for parser compilation does not match the current runtime version 4.9.2

To Reproduce
Steps to reproduce the behavior, include:
We use Kubernetes for deployment with ArgoCD and a fork of the helm chart here.

1. Update chart to use image tag 7.1.0
2. Deploy

ksql> show connectors;
ANTLR Tool version 4.7.1 used for code generation does not match the current runtime version 4.9.2
ANTLR Runtime version 4.7.1 used for parser compilation does not match the current runtime version 4.9.2
ANTLR Tool version 4.7.1 used for code generation does not match the current runtime version 4.9.2
ANTLR Runtime version 4.7.1 used for parser compilation does not match the current runtime version 4.9.2

 Connector Name | Type | Class | Status 
----------------------------------------
----------------------------------------
ksql> 

Expected behavior
No warnings. ANTLR versions should match

Actual behaviour
A clear and concise description of what actually happens, including:
See above

Additional context
Log example

[2022-04-05 21:23:46,591] INFO Adding function ComplexFunction for method public java.lang.Object io.confluent.ksql.function.UdfLoaderTest$ComplexUdf.foo(java.lang.String) (io.confluent.ksql.function.UdfLoader)
ANTLR Tool version 4.7.1 used for code generation does not match the current runtime version 4.9.2
ANTLR Runtime version 4.7.1 used for parser compilation does not match the current runtime version 4.9.2

This is a new image, so shouldn't be polluted with any changes we've made. This is a list off all the ANTLR JARs I found on the image. Only the bottom one is in the class path. I tried deleting it with rm, but that had no effect.

['./usr/share/doc/cp-ksqldb-server/licenses/LICENSE-antlr4-runtime-4.7.1.txt',
 './usr/share/java/confluent-security/connect/antlr-runtime-3.5.2.jar',
 './usr/share/java/confluent-security/connect/antlr4-4.9.2.jar',
 './usr/share/java/confluent-security/connect/antlr4-runtime-4.9.2.jar',
 './usr/share/java/confluent-security/kafka-rest/antlr-runtime-3.5.2.jar',
 './usr/share/java/confluent-security/kafka-rest/antlr4-4.9.2.jar',
 './usr/share/java/confluent-security/kafka-rest/antlr4-runtime-4.9.2.jar',
 './usr/share/java/confluent-security/ksql/antlr-runtime-3.5.2.jar',
 './usr/share/java/confluent-security/ksql/antlr4-4.9.2.jar',
 './usr/share/java/confluent-security/ksql/antlr4-runtime-4.9.2.jar',
 './usr/share/java/confluent-security/schema-registry/antlr-runtime-3.5.2.jar',
 './usr/share/java/confluent-security/schema-registry/antlr4-4.9.2.jar',
 './usr/share/java/confluent-security/schema-registry/antlr4-runtime-4.9.2.jar',
 './usr/share/java/ksqldb-server/antlr4-runtime-4.7.1.jar']

[jnh5y]

There is a separate PR here for fixing this in 7.1.x: https://github.com/confluentinc/ksql/pull/8783/files. The issue was found "too late" in testing for 7.1.x to justify fixing things to avoid this warning. (That is, the risk was judged to too high.)

[jnh5y]

A fix for 7.1.x has been merged here: #8783