File operations on a path with a trailing space in a directory or file name, e.g. "C:\\SomeFolder\\SomeFile ", now fail consistently on Windows. For example. `File::mkdir` will return `false`, or `File::createNewFile` will throw `IOException` if an element in the path has a trailing space. Such pathnames are not legal on Windows. Prior to JDK 25, operations on a `File` created from such an illegal abstract pathname could appear to succeed when in fact they did not.