fix for GRAILS-10201 ""Method name must not be null" error after upgrading from 2.2.1 to 2.2.3"

Author: graemerocher

grails-web/src/main/groovy/org/codehaus/groovy/grails/web/servlet/mvc/AbstractGrailsControllerHelper.java

@@ -15,6 +15,7 @@
  */
 package org.codehaus.groovy.grails.web.servlet.mvc;
 
+import grails.util.GrailsWebUtil;
 import groovy.lang.Closure;
 import groovy.lang.GroovyObject;
 import groovy.util.Proxy;
@@ -133,17 +134,20 @@ public ModelAndView handleURI(final String originalUri, GrailsWebRequest grailsW
 
         // Step 2: lookup the controller in the application.
         GrailsControllerClass controllerClass=null;
-        Object attribute = grailsWebRequest.getAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS, WebRequest.SCOPE_REQUEST);
-        if (attribute instanceof GrailsControllerClass) {
-            controllerClass = (GrailsControllerClass)attribute;
-            Boolean canUse = (Boolean)grailsWebRequest.getAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS_AVAILABLE, WebRequest.SCOPE_REQUEST);
-            if(canUse == null) {
-                controllerClass = null;
-            } else {
-                grailsWebRequest.removeAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS_AVAILABLE, WebRequest.SCOPE_REQUEST);
+        if(!WebUtils.isIncludeRequest(request)) {
+
+            Object attribute = grailsWebRequest.getAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS, WebRequest.SCOPE_REQUEST);
+            if (attribute instanceof GrailsControllerClass) {
+                controllerClass = (GrailsControllerClass)attribute;
+                Boolean canUse = (Boolean)grailsWebRequest.getAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS_AVAILABLE, WebRequest.SCOPE_REQUEST);
+                if(canUse == null) {
+                    controllerClass = null;
+                } else {
+                    grailsWebRequest.removeAttribute(GrailsApplicationAttributes.GRAILS_CONTROLLER_CLASS_AVAILABLE, WebRequest.SCOPE_REQUEST);
+                }
             }
-        } 
-        
+        }
+
         if (controllerClass == null) {
         	controllerClass = getControllerClassByURI(uri);
         }