The FS.setAsyncFileStoreAttributes() static method calls FileStoreAttributes.setBackground() as its implementation, but there are other public attributes on this inner class already and there isn't a real reason why this needs to be private. By making it public we allow callers to be able to invoke it directly. Although it doesn't appear that it would make a difference, by calling a static method on the FS class, all static fields and the transitive closure of class dependencies must be loaded and initialised, which can be non-trivial. Callers referring to FS.setAsyncFileStoreAttributes() may be replaced with FS.FileStoreAttributes.setBackground() with no change of behaviour other than improved performance due to less class loading required. Bug: 560527 Change-Id: I9538acc90da8d18f53fd60d74eb54496857f93a5 Signed-off-by: Alex Blewitt <alex.blewitt@gmail.com>