Adds double check if resource exists

Author: lukaszlenart

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

@@ -36,6 +36,12 @@
 import javax.servlet.ServletContext;
 import java.net.MalformedURLException;
 import java.util.*;
+import java.net.URL;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.List;
+import java.util.Map;
 
 /**
  * <p>
@@ -313,16 +319,18 @@ protected Result findResult(String path, String resultCode, String ext, ActionCo
         try {
             LOG.trace("Checking ServletContext for {}", path);
 
-            if (servletContext.getResource(path) != null) {
-                LOG.trace("Found");
+            URL resource = servletContext.getResource(path);
+            if (resource != null && resource.getPath().endsWith(path)) {
+                LOG.trace("Found resource {}", resource);
                 return buildResult(path, resultCode, resultsByExtension.get(ext), actionContext);
             }
 
             LOG.trace("Checking ClassLoader for {}", path);
 
             String classLoaderPath = path.startsWith("/") ? path.substring(1, path.length()) : path;
-            if (ClassLoaderUtil.getResource(classLoaderPath, getClass()) != null) {
-                LOG.trace("Found");
+            resource = ClassLoaderUtil.getResource(classLoaderPath, getClass());
+            if (resource != null && resource.getPath().endsWith(classLoaderPath)) {
+                LOG.trace("Found resource {}", resource);
                 return buildResult(path, resultCode, resultsByExtension.get(ext), actionContext);
             }
         } catch (MalformedURLException e) {