question: private boolean isModified ( ) { long uidListModified = uidFile . lastModified ( ) ; long curModified = curFolder . lastModified ( ) ; long newModified = newFolder . lastModified ( ) ; if ( curModified >= uidListModified || newModified >= uidListModified ) { return true ; } return false ; }
target:  Checks whether the folder's contents have been changed after the uidfile has been created.