Naoto, Can you review this ResourceBundle caching fix? The caller module may be different than the specified module to ResourceBundle.getBundle(String, Module) method and it should also part of the cache key.
http://cr.openjdk.java.net/~mchung/jdk9/webrevs/8170772/webrev.00/ The new test shows the issue there and the first loading of the resource bundle of a specific module (success or fail) will be put in the cache and used by subsequent calls. Thanks Mandy
