android - heap size warning when uploading a file using url connection -

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i trying upload file amazon s3 using httpurlconnection , put method.

  outputstream = new dataoutputstream( connection.getoutputstream() );         bytesavailable = fileinputstream.available();         int current = 0;         buffersize = math.min(bytesavailable, maxbuffersize);         buffer = new byte[buffersize];          // read file         bytesread = fileinputstream.read(buffer, 0, buffersize);          while (bytesread > 0)        {             outputstream.write(buffer, 0, buffersize);             bytesavailable = fileinputstream.available();             buffersize = math.min(bytesavailable, maxbuffersize);             bytesread = fileinputstream.read(buffer, 0, buffersize);             current+=bytesread;         }

is proper way use buffer output data? works great smaller files when try upload larger says 

02-11 19:04:38.718: info/dalvikvm-heap(15385): grow heap (frag case) 9.204mb 3143696-byte allocation

what doing wrong? highly appreciated, thank you.


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