Apache Flink

Do  jars under `opt/flink`  would be added to `flink class path` ?
```root@examplecode-6d4d45688f-x8k6n:/opt/flink# ls opt/
flink-azure-fs-hadoop-1.16.1.jar   flink-gs-fs-hadoop-1.16.1.jar             flink-s3-fs-hadoop-1.16.1.jar                              flink-sql-client-1.16.1.jar           python
flink-cep-scala_2.12-1.16.1.jar    flink-oss-fs-hadoop-1.16.1.jar            flink-s3-fs-presto-1.16.1.jar                              flink-sql-gateway-1.16.1.jar
flink-gelly-1.16.1.jar             flink-python-1.16.1.jar                   flink-shaded-netty-tcnative-dynamic-2.0.44.Final-15.0.jar  flink-state-processor-api-1.16.1.jar
flink-gelly-scala_2.12-1.16.1.jar  flink-queryable-state-runtime-1.16.1.jar  flink-shaded-zookeeper-3.6.3.jar                           flink-table-planner_2.12-1.16.1.jar```

Surprisingly `flink-table-planner_2.12-1.16.1.jar`  is not part of `flink/lib`

Screenshot 2023-02-27 at 5.11.04 PM.png

`flink-table-planner-loader`.jar contains  `flink-table-planner.jar` under it. Does it ever get loaded? i am confused.

I believe only `/opt/flink/lib` and `/opt/flink/usrlib` are loaded (by different classloaders).