On the server side I get the string and try to convert it back to an array that I can then write to a file on the server, but this isn't as simple as I thought it should be. This example would then create a file containg the words hello world - of course the idea is to support other data also! So, my question is, is there an efficient way to convert the string to an array. Sure I could build a parser myself for this, but my guess is there are very fast packages out there that can do the job far better than I ever could!
com.fasterxml.jackson classes seems promising, but haven't got them to work yet.