small code cleanup

Signed-off-by: Lukas Jungmann <lukas.jungmann@oracle.com>

api/src/main/java/jakarta/xml/ws/RespectBindingFeature.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2020 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2022 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Distribution License v. 1.0, which is available at
@@ -93,9 +93,7 @@ public RespectBindingFeature(boolean enabled) {
         this.enabled = enabled;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    @Override
     public String getID() {
         return ID;
     }

api/src/main/java/jakarta/xml/ws/soap/AddressingFeature.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2020 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2022 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Distribution License v. 1.0, which is available at
@@ -111,8 +111,7 @@ public final class AddressingFeature extends WebServiceFeature {
      * requires WS-Addressing. If required is true, WS-Addressing headers MUST
      * be present on incoming and outgoing messages.
      */
-    // should be private final, keeping original modifier due to backwards compatibility
-    protected boolean required;
+    private boolean required;
 
     /**
      * If addressing is enabled, this property determines if endpoint requires
@@ -222,9 +221,7 @@ public AddressingFeature(boolean enabled, boolean required, Responses responses)
         this.responses = responses;
     }
 
-    /**
-     * {@inheritDoc}
-     */
+    @Override
     public String getID() {
         return ID;
     }

api/src/main/java/jakarta/xml/ws/soap/MTOMFeature.java

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2005, 2020 Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2005, 2022 Oracle and/or its affiliates. All rights reserved.
  *
  * This program and the accompanying materials are made available under the
  * terms of the Eclipse Distribution License v. 1.0, which is available at
@@ -54,8 +54,7 @@ public final class MTOMFeature extends WebServiceFeature {
      * as attachment.
      * The value of this property MUST always be {@literal >=} 0. Default value is 0.
      */
-    // should be changed to private final, keeping original modifier to keep backwards compatibility
-    protected int threshold;
+    private int threshold;
 
 
     /**
@@ -110,9 +109,7 @@ public MTOMFeature(boolean enabled, int threshold) {
         this.threshold = threshold;
     }    
 
-    /**
-     * {@inheritDoc}
-     */
+    @Override
     public String getID() {
         return ID;
     }

api/src/main/java/jakarta/xml/ws/wsaddressing/W3CEndpointReference.java

@@ -58,20 +58,16 @@ public final class W3CEndpointReference extends EndpointReference {
 
     private final JAXBContext w3cjc = getW3CJaxbContext();
 
-    // should be changed to package private, keeping original modifier to keep backwards compatibility
-
     /**
      * Addressing namespace.
      */
-    protected static final String NS = "http://www.w3.org/2005/08/addressing";
+    static final String NS = "http://www.w3.org/2005/08/addressing";
 
     // default constructor forbidden ...
-    // should be private, keeping original modifier to keep backwards compatibility
-
     /**
      * Default constructor.
      */
-    protected W3CEndpointReference() {
+    private W3CEndpointReference() {
     }
 
     /**
@@ -177,9 +173,6 @@ List<Element> getElements() {
         return elements;
     }
 
-    /**
-     * {@inheritDoc}
-     */
     @Override
     public void writeTo(Result result){
         try {