Java program to find and backup images and other file types -- 2

I would like a Java program that does the following: 1) efficiently crawls a computer (mac, linux, windows OS) for files of certain types (matching a regular expression with wildcards perhaps, but also, see below, possibly by programmatically determining file types - images and videos to start) 2) prompts the user with an expandable hierarchical list of files/folders that can be selected by file and folder hierarchy or by types, and backup the selected files/folders to a remote location (initially an Amazon S3 bucket) with the following options (within the original target bucket/folder): a. preserving the original file hierarchy (from root source folder) in the destination b. storing files in folders by day, by month, or by year (of original file creation) c. storing files in folders by filetype d. default is to store all backed up files in a single destination folder 3) uses an embedded pure Java database (H2) for storing configuration settings, backup statistics/history, and a list of known files and locations to backup or ignore (user should optionally be prompted to select new files/types after each crawl and user can also see and change settings for all files in expandable list - ideally the expandable list will indicate nodes/folders which have newly discovered files of interest). Ideally, the program would be able to store multiple "configurations" for different backup jobs that can be "replayed". 4) has a GUI for settings and progress monitoring, but also be able to be run automatically from the command line (either based upon configuration settings passed in from command line or from previous/saved settings). 5) recognizes duplicate files regardless of location or filename (probably using some kind of hash list in the database) and not copy/backup duplicates unless configured to do so. 6) absolutely not change or affect source files in any way 7) keep/display a history of backup dates and statistics - e.g. how many files were found/examined, how many files were new, how many files were changed, how many files were backed up Also not required, but nice to have features include: 1) for image files, the program would offer to "adjust orientation" of copied images if needed based upon exif data (if available) in the files 2) the program optionally would be able to recognize files without extensions (or possibly just validate extensions using Apache Tika - see [login to view URL] for discussion), possibly adding appropriate missing extensions.... There are many areas in which this project could grow in the future if your work is successful. Freelancers who are interested in this project should provide the following: 1) an image of a Java GUI you have built 2) a description of the technology you would use for this project 3) a description of a similar solution you have built (if any) 4) an estimate or how long it will take and proposed project timeline/milestones 5) a brief description of what you think are the biggest challenges in the project 6) a bid/cost estimate for program completion Thank you for your consideration and best regards.