Refactor

Author: Yunyung

connect/runtime/src/test/java/org/apache/kafka/connect/runtime/WorkerTest.java

@@ -2906,8 +2906,6 @@ public void testMonitorableConfigProvider() {
         setup(false);
         Map<String, String> props = new HashMap<>(this.workerProps);
         props.put("config.providers", "monitorable,monitorable2");
-        props.put("config.providers.monitorable.class", MonitorableConfigProvider.class.getName());
-        props.put("config.providers.monitorable2.class", MonitorableConfigProvider.class.getName());
         config = new StandaloneConfig(props);
         mockKafkaClusterId();
         when(plugins.newConfigProvider(any(AbstractConfig.class), any(String.class), any(ClassLoaderUsage.class), any(Metrics.class)))

connect/runtime/src/test/java/org/apache/kafka/connect/runtime/isolation/PluginsTest.java

@@ -405,7 +405,7 @@ public void newConfigProviderShouldConfigureWithPluginClassLoader() {
     public void newConfigProviderShouldCallWithPluginMetricsAfterConfigure() {
         String providerName = "monitorable";
         String providerPrefix = WorkerConfig.CONFIG_PROVIDERS_CONFIG + "." + providerName;
-        props.put(providerPrefix + ".class", CustomMonitorableConfigProvider .class.getName());
+        props.put(providerPrefix + ".class", CustomMonitorableConfigProvider.class.getName());
         createConfig();
         Plugin<ConfigProvider> plugin = plugins.newConfigProvider(config, providerName, ClassLoaderUsage.PLUGINS, new Metrics());
         assertInstanceOf(CustomMonitorableConfigProvider.class, plugin.get());