Dropbox API overwrite upload files instead of rename it -

i trying upload files dropbox using java api (version 2-beta-4), of these files have same name.

what know is: reason send file (for instance "file.txt") dropbox, file uploaded, if send file same name (file.txt) dropbox overwrite old file new 1 instead of renaming "file (1).txt", setting autorename true , writemode add?

code:

dbxrequestconfig config = new dbxrequestconfig("sample", "pt_br"); string acesstoken = "..."; client = new dbxclientv2(config, accesstoken);  inputstream input = new bytearrayinputstream(file.getbytes()); filemetadata file = client.files.uploadbuilder(path).mode(writemode.add).autorename(true)                                                     .mute(true).run(input); 

thanks.

writemode.add what's causing behavior. "add" means "add new file name," never overwrites existing file. if want overwrite existing file, use writemode.overwrite.

(also, isn't writemode.add() , writemode.overwrite()? thought methods.)