Changes

Fixed an Exception caused by casting an Array to Permission[]
 (commit: d4e1a04)

Use Collection#toArray(T[]) instead.
Like the toArray() method, this method acts as bridge between
array-based and collection-based APIs. Further, this method allows
precise control over the runtime type of the output array, and may,
under certain circumstances, be used to save allocation costs.
 (commit: d33af52)