Index: ClasspathSpool.java
===================================================================
--- ClasspathSpool.java	(revision 12680)
+++ ClasspathSpool.java	(working copy)
@@ -86,7 +86,26 @@
             URL url = ClasspathResourcesUtil.getResource(MGNL_RESOURCES_ROOT + filePath);
             if(url != null){
                 URLConnection connection = url.openConnection();
-                return connection.getLastModified();
+
+                connection.setDoInput(false);
+                connection.setDoOutput(false);
+
+                long lastModified = connection.getLastModified();
+                InputStream is = null;
+                try
+                {
+                    is = connection.getInputStream();
+                    if (is != null)
+                    {
+                        is.close();
+                    }
+                }
+                finally
+                {
+                    IOUtils.closeQuietly(is);
+                }
+
+                return lastModified;
             }
         }
         catch (IOException e) {