WW-3570 slot for debugging information in RPCResponse

git-svn-id: https://svn.apache.org/repos/asf/struts/struts2/trunk@1068552 13f79535-47bb-0310-9956-ffa450edef68

plugins/json/src/main/java/org/apache/struts2/json/rpc/RPCResponse.java

@@ -27,6 +27,7 @@ public class RPCResponse {
     private String id;
     private Object result;
     private RPCError error;
+    private String debug;
 
     public String getId() {
         return id;
@@ -51,4 +52,12 @@ public class RPCResponse {
     public void setError(RPCError error) {
         this.error = error;
     }
+
+    public String getDebug() {
+        return debug;
+    }
+
+    public void setDebug(String debugInfo) {
+        this.debug = debug;
+    }
 }

plugins/json/src/test/resources/org/apache/struts2/json/smd-11.txt

@@ -1,4 +1,5 @@
 {
+    "debug":null,
     "error":null,
     "id":"2",
     "result":null

plugins/json/src/test/resources/org/apache/struts2/json/smd-12.txt

@@ -1,4 +1,5 @@
 {
+    "debug":null,
     "error":null,
     "id":"15",
     "result": {

plugins/json/src/test/resources/org/apache/struts2/json/smd-13.txt

@@ -1,4 +1,5 @@
 {
+    "debug": null,
     "error": {
         "code":100,
         "message": "'method' is required for JSON RPC",