chia7712 commented on code in PR #19920:
URL: https://github.com/apache/kafka/pull/19920#discussion_r2134723614


##########
connect/runtime/src/test/java/org/apache/kafka/connect/runtime/LoggersTest.java:
##########
@@ -41,12 +45,19 @@ public class LoggersTest {
     private static final long INITIAL_TIME = 1696951712135L;
     private Loggers.Log4jLoggers loggers;
     private Time time;
+    Level originalRootLevel;
 
     @BeforeEach
     public void setup() {
+        originalRootLevel = LogManager.getRootLogger().getLevel();
         time = new MockTime(0, INITIAL_TIME, 0);
         loggers = (Loggers.Log4jLoggers) Loggers.newInstance(time);
     }
+    
+    @AfterEach
+    public void teardown() {
+        Configurator.setAllLevels(LogManager.ROOT_LOGGER_NAME, 
originalRootLevel);

Review Comment:
   This changes all 'child' loggers, right? If so, it is not a kind of 
restoring logger levels



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