Fix a NPE in InputMethodManagerCompatWrapper

            InputMethodInfoCompatWrapper imi, boolean allowsImplicitlySelectedSubtypes) {

        Object retval = CompatUtils.invoke(mImm, null, METHOD_getEnabledInputMethodSubtypeList,

                (imi != null ? imi.getInputMethodInfo() : null), allowsImplicitlySelectedSubtypes);

        // Returns an empty list

        if (retval == null)

            return Collections.emptyList();

        return CompatUtils.copyInputMethodSubtypeListToWrapper((List<?>)retval);

    }