WW-5352 Refactor ParametersInterceptor

Author: kusalk

core/src/main/java/com/opensymphony/xwork2/security/AcceptedPatternsChecker.java

@@ -32,37 +32,37 @@ public interface AcceptedPatternsChecker {
      * @param value to check
      * @return object containing result of matched pattern and pattern itself
      */
-    public IsAccepted isAccepted(String value);
+    IsAccepted isAccepted(String value);
 
     /**
      * Sets excluded patterns during runtime
      *
      * @param commaDelimitedPatterns comma delimited string with patterns
      */
-    public void setAcceptedPatterns(String commaDelimitedPatterns);
+    void setAcceptedPatterns(String commaDelimitedPatterns);
 
     /**
      * Set excluded patterns during runtime
      *
      * @param patterns array of additional excluded patterns
      */
-    public void setAcceptedPatterns(String[] patterns);
+    void setAcceptedPatterns(String[] patterns);
 
     /**
      * Sets excluded patterns during runtime
      *
      * @param patterns set of additional patterns
      */
-    public void setAcceptedPatterns(Set<String> patterns);
+    void setAcceptedPatterns(Set<String> patterns);
 
     /**
      * Allow access list of all defined excluded patterns
      *
      * @return set of excluded patterns
      */
-    public Set<Pattern> getAcceptedPatterns();
+    Set<Pattern> getAcceptedPatterns();
 
-    public final static class IsAccepted {
+    final class IsAccepted {
 
         private final boolean accepted;
         private final String acceptedPattern;

core/src/main/java/com/opensymphony/xwork2/security/ExcludedPatternsChecker.java

@@ -32,37 +32,37 @@ public interface ExcludedPatternsChecker {
      * @param value to check
      * @return object containing result of matched pattern and pattern itself
      */
-    public IsExcluded isExcluded(String value);
+    IsExcluded isExcluded(String value);
 
     /**
      * Sets excluded patterns during runtime
      *
      * @param commaDelimitedPatterns comma delimited string with patterns
      */
-    public void setExcludedPatterns(String commaDelimitedPatterns);
+    void setExcludedPatterns(String commaDelimitedPatterns);
 
     /**
      * Sets excluded patterns during runtime
      *
      * @param patterns array of additional excluded patterns
      */
-    public void setExcludedPatterns(String[] patterns);
+    void setExcludedPatterns(String[] patterns);
 
     /**
      * Sets excluded patterns during runtime
      *
      * @param patterns set of additional patterns
      */
-    public void setExcludedPatterns(Set<String> patterns);
+    void setExcludedPatterns(Set<String> patterns);
 
     /**
      * Allow access list of all defined excluded patterns
      *
      * @return set of excluded patterns
      */
-    public Set<Pattern> getExcludedPatterns();
+    Set<Pattern> getExcludedPatterns();
 
-    public final static class IsExcluded {
+    final class IsExcluded {
 
         private final boolean excluded;
         private final String excludedPattern;

core/src/main/java/org/apache/struts2/dispatcher/Parameter.java

@@ -18,12 +18,12 @@
  */
 package org.apache.struts2.dispatcher;
 
-import java.util.Objects;
-
 import org.apache.commons.text.StringEscapeUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
 
+import java.util.Objects;
+
 public interface Parameter {
 
     String getName();
@@ -58,7 +58,7 @@ public String getName() {
         @Override
         public String getValue() {
             String[] values = toStringArray();
-            return (values != null && values.length > 0) ? values[0] : null;
+            return values.length > 0 ? values[0] : null;
         }
 
         private String[] toStringArray() {
@@ -124,7 +124,7 @@ public String toString() {
 
     class Empty implements Parameter {
 
-        private String name;
+        private final String name;
 
         public Empty(String name) {
             this.name = name;

core/src/main/java/org/apache/struts2/interceptor/ActionMappingParametersInterceptor.java

@@ -76,12 +76,12 @@ public class ActionMappingParametersInterceptor extends ParametersInterceptor {
     /**
      * Get the parameter map from ActionMapping associated with the provided ActionContext.
      *
-     * @param ac The action context
+     * @param actionContext The action context
      * @return the parameters from the action mapping in the context.  If none found, returns an empty map.
      */
     @Override
-    protected HttpParameters retrieveParameters(ActionContext ac) {
-        ActionMapping mapping = ac.getActionMapping();
+    protected HttpParameters retrieveParameters(ActionContext actionContext) {
+        ActionMapping mapping = actionContext.getActionMapping();
         if (mapping != null) {
             return HttpParameters.create(mapping.getParams()).buildNoNestedWrapping();
         } else {