java.util.MissingResourceException: Can't find bundle for base name /, locale en_US

Hi All ,
I am running gradle with java and google appengine (GAE plugin). While runing the junit test case it throws
java.util.MissingResourceException: Can’t find bundle for base name.

We read resources file using ResourceBundle the same works while running the appengine but it does not work while running gradle test.
public static ResourceBundle getResource() {
return ResourceBundle.getBundle(“com/full/integration/”);

I have tried replacing the file to resources folder but no luck .