Question

If I have a large byte array already in memory received from a SOAP response.

I have to write this byte array into an OutputStream.

It is OK just to use write:

byte [] largeByteArray=...;

outputstream.write(largeByteArray);

...
outputstream.flush();
...

or is better to split the bytearray in small chunks and to write that to the outputstream?

Answer 1

If you’ve already got the large array, then just write it out – if the output stream implementation chooses to chunk it, it can make that decision. I can’t see a benefit in you doing that for it – which may well make it less efficient, if it’s able to handle large chunks.