@AfterClass
    public static void after() {
        if (restClusterClient != null) {
            restClusterClient.close();
        }
        if (jobManager != null) {
            jobManager.stop();
        }
        if (taskManager != null) {
            taskManager.stop();
        }
    }
End to end base test environment for test sort-connectors.
Every link : MySQL -> Xxx (Test connector) -> MySQL
inlong-sort/sort-end-to-end-tests/sort-end-to-end-tests-v1.15/src/test/java/org/apache/inlong/sort/tests/utils/FlinkContainerTestEnv.java