PUBLIC COMMENTS

DataInputStream.readUTF and DataOutputStream.writeUTF operate on single bytes
                                     

SUGGESTED FIX

The suggested fix is to assemble the result of writeUTF into a local byte[]
and then do a single write(byte[], ...).  That copies the bytes an extra 
time (with System.arraycopy in ByteArrayOutputStream), but it avoids a lot 
of synchronized calls.

The parallel fix in DataInputStream.readUTF is, after you figure out how long 
the incoming UTF is, to do a readFully(byte[],...) to a local byte[] and 
then extract bytes from that array rather than calling readUnsignedByte() 
for each byte.

peter.kessler@Eng 1998-12-03
                                     

EVALUATION

Yep.  Measure it first, though.  -- mr@eng 1998/12/16