diff --git a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpParser.java b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpParser.java
index 1015c73d1159..9fa6979119a1 100644
--- a/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpParser.java
+++ b/jetty-core/jetty-http/src/main/java/org/eclipse/jetty/http/HttpParser.java
@@ -379,25 +379,33 @@ public void setHeaderCacheCaseSensitive(boolean headerCacheCaseSensitive)
 
     protected void checkViolation(Violation violation) throws HttpException.RuntimeException
     {
-        boolean allowed = violation.isAllowedBy(_complianceMode);
-        reportComplianceViolation(violation, violation.getDescription());
-
-        if (!allowed)
+        if (!checkAndReportViolation(violation, violation.getDescription()))
             throw new HttpException.RuntimeException(HttpStatus.BAD_REQUEST_400, violation.getDescription());
     }
 
+    protected boolean checkAndReportViolation(Violation violation, String reason)
+    {
+        boolean allowed = _complianceMode.allows(violation);
+        reportComplianceViolation(violation, reason, allowed);
+        return allowed;
+    }
+
+    @Deprecated
     protected void reportComplianceViolation(Violation violation)
     {
-        reportComplianceViolation(violation, violation.getDescription());
+        checkAndReportViolation(violation, violation.getDescription());
     }
 
+    @Deprecated
     protected void reportComplianceViolation(Violation violation, String reason)
+    {
+        checkAndReportViolation(violation, reason);
+    }
+
+    protected void reportComplianceViolation(Violation violation, String reason, boolean allowed)
     {
         if (_requestParser)
-        {
-            boolean allowed = _complianceMode.allows(violation);
             _requestHandler.onViolation(new ComplianceViolation.Event(_complianceMode, violation, reason, allowed));
-        }
     }
 
     protected String caseInsensitiveHeader(String orig, String normative)
@@ -405,7 +413,7 @@ protected String caseInsensitiveHeader(String orig, String normative)
         if (CASE_SENSITIVE_FIELD_NAME.isAllowedBy(_complianceMode))
             return normative;
         if (!orig.equals(normative))
-            reportComplianceViolation(CASE_SENSITIVE_FIELD_NAME, orig);
+            reportComplianceViolation(CASE_SENSITIVE_FIELD_NAME, orig, false);
         return orig;
     }
 
@@ -795,8 +803,7 @@ private boolean parseLine(ByteBuffer buffer)
                             }
                             else
                             {
-                                reportComplianceViolation(Violation.CASE_INSENSITIVE_METHOD, _methodString);
-                                if (_complianceMode.allows(Violation.CASE_INSENSITIVE_METHOD))
+                                if (checkAndReportViolation(Violation.CASE_INSENSITIVE_METHOD, _methodString))
                                 {
                                     method = HttpMethod.INSENSITIVE_CACHE.get(_methodString);
                                     if (method != null)
@@ -964,9 +971,9 @@ private boolean parseLine(ByteBuffer buffer)
                             break;
 
                         case EOL:
+                        {
                             // HTTP/0.9
-                            reportComplianceViolation(HTTP_0_9, HTTP_0_9.getDescription());
-                            if (Violation.HTTP_0_9.isAllowedBy(_complianceMode))
+                            if (checkAndReportViolation(Violation.HTTP_0_9, HTTP_0_9.getDescription()))
                             {
                                 _requestHandler.startRequest(_methodString, _uri.toCompleteString(), HttpVersion.HTTP_0_9);
                                 setState(State.CONTENT);
@@ -979,6 +986,7 @@ private boolean parseLine(ByteBuffer buffer)
                                 throw new HttpException.RuntimeException(HttpStatus.HTTP_VERSION_NOT_SUPPORTED_505, "HTTP/0.9 not supported");
                             }
                             break;
+                        }
 
                         case ALPHA:
                         case DIGIT:
@@ -1548,11 +1556,10 @@ else if (_endOfContent == EndOfContent.UNKNOWN_CONTENT)
                     {
                         case SPACE:
                         case HTAB:
-                            //Ignore trailing whitespaces ?
-                            if (WHITESPACE_AFTER_FIELD_NAME.isAllowedBy(_complianceMode))
+                            //Ignore trailing whitespaces?
+                            if (checkAndReportViolation(WHITESPACE_AFTER_FIELD_NAME, _headerString))
                             {
                                 _headerString = takeString();
-                                reportComplianceViolation(WHITESPACE_AFTER_FIELD_NAME, "Space after " + _headerString);
                                 _header = HttpHeader.CACHE.get(_headerString);
                                 _length = -1;
                                 setState(FieldState.WS_AFTER_NAME);
@@ -1574,8 +1581,7 @@ else if (_endOfContent == EndOfContent.UNKNOWN_CONTENT)
                             _valueString = "";
                             _length = -1;
 
-                            reportComplianceViolation(NO_COLON_AFTER_FIELD_NAME, "Field " + _headerString);
-                            if (NO_COLON_AFTER_FIELD_NAME.isAllowedBy(_complianceMode))
+                            if (checkAndReportViolation(NO_COLON_AFTER_FIELD_NAME, _headerString))
                             {
                                 setState(FieldState.FIELD);
                                 break;
@@ -1606,9 +1612,8 @@ else if (_endOfContent == EndOfContent.UNKNOWN_CONTENT)
                             break;
 
                         case EOL:
-                            if (NO_COLON_AFTER_FIELD_NAME.isAllowedBy(_complianceMode))
+                            if (checkAndReportViolation(NO_COLON_AFTER_FIELD_NAME, _headerString))
                             {
-                                reportComplianceViolation(NO_COLON_AFTER_FIELD_NAME, "Field " + _headerString);
                                 setState(FieldState.FIELD);
                                 break;
                             }
diff --git a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpChannelState.java b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpChannelState.java
index 13e376fc489f..0342e6761234 100644
--- a/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpChannelState.java
+++ b/jetty-core/jetty-server/src/main/java/org/eclipse/jetty/server/internal/HttpChannelState.java
@@ -156,10 +156,11 @@ public void initialize()
                 case 1 -> listeners.get(0).initialize();
                 default -> new InitializedCompositeComplianceViolationListener(listeners);
             };
-        }
 
-        if (!_connectionMetaData.getHttpConfiguration().isNotifyForbiddenComplianceViolations())
-            _complianceViolationListener = new AllowedOnlyComplianceListener(_complianceViolationListener);
+            if (_complianceViolationListener != ComplianceViolation.Listener.NOOP &&
+                !_connectionMetaData.getHttpConfiguration().isNotifyForbiddenComplianceViolations())
+                _complianceViolationListener = new AllowedOnlyComplianceListener(_complianceViolationListener);
+        }
     }
 
     private static class AllowedOnlyComplianceListener implements ComplianceViolation.Listener