--- old/src/java.base/share/classes/java/nio/file/ClosedFileSystemException.java 2017-03-14 01:38:55.255108202 -0700 +++ new/src/java.base/share/classes/java/nio/file/ClosedFileSystemException.java 2017-03-14 01:38:55.073108205 -0700 @@ -28,6 +28,8 @@ /** * Unchecked exception thrown when an attempt is made to invoke an operation on * a file and the file system is closed. + * + * @since 1.7 */ public class ClosedFileSystemException