diff --git a/src/test/java/org/apache/sling/clam/it/tests/ClamEventsServletIT.java b/src/test/java/org/apache/sling/clam/it/tests/ClamEventsServletIT.java
index 230477e..b166078 100644
--- a/src/test/java/org/apache/sling/clam/it/tests/ClamEventsServletIT.java
+++ b/src/test/java/org/apache/sling/clam/it/tests/ClamEventsServletIT.java
@@ -137,9 +137,9 @@
             until(() -> recordingEventHandler.countEvents() == 8);
     }
 
-    class BasicAuthInterceptor implements Interceptor {
+    static class BasicAuthInterceptor implements Interceptor {
 
-        private String credentials;
+        private final String credentials;
 
         BasicAuthInterceptor(final String user, final String password) {
             this.credentials = Credentials.basic(user, password);
@@ -156,7 +156,7 @@
 
     }
 
-    class RecordingEventHandler implements EventHandler {
+    static class RecordingEventHandler implements EventHandler {
 
         private final List<String> events = new ArrayList<>();