turned @AllowedMethods into String[]

plugins/convention/src/main/java/org/apache/struts2/convention/PackageBasedActionConfigBuilder.java

@@ -744,7 +744,11 @@ public class PackageBasedActionConfigBuilder implements ActionConfigBuilder {
         if (annotation == null) {
             return Collections.emptySet();
         } else {
-            return TextParseUtil.commaDelimitedStringToSet(annotation.value());
+            Set<String> methods = new HashSet<>();
+            for (String method : annotation.value()) {
+                methods.add(method);
+            }
+            return methods;
         }
     }
 

plugins/convention/src/main/java/org/apache/struts2/convention/annotation/AllowedMethods.java

@@ -25,6 +25,6 @@ import java.lang.annotation.Target;
 @Retention(value = RetentionPolicy.RUNTIME)
 public @interface AllowedMethods {
 
-    String value() default ActionConfig.DEFAULT_METHOD;
+    String[] value() default ActionConfig.DEFAULT_METHOD;
 
 }

plugins/convention/src/test/java/org/apache/struts2/convention/actions/allowedmethods/package-info.java

@@ -18,6 +18,6 @@
  * specific language governing permissions and limitations
  * under the License.
  */
-@org.apache.struts2.convention.annotation.AllowedMethods("home,start")
+@org.apache.struts2.convention.annotation.AllowedMethods({"home", "start"})
 package org.apache.struts2.convention.actions.allowedmethods;