master
8213406: (fs) More than one instance of built-in FileSystem observed in heap
8187443: Forest Consolidation: Move files to unified layout
8242695: Enhanced buffer support
8080225: FileInput/OutputStream/FileChannel cleanup should be improved
8215281: Use String.isEmpty() when applicable in java.base
8201407: Files.move throws DirectoryNonEmptyException when moving directory across file system
8265100: (fs) WindowsFileStore.hashCode() should read cached hash code once
8242680: Improved URI Support