#3 TCPIPConnection, ungracefull socket close detection

[Yiannis Dzegoutanis]

In class com.logica.smpp.TCPIPConnection @line 413 (receive() method):

bytesRead = inputStream.read(receiveBuffer, 0, bytesToRead);

returns -1 if the underling socket has been ungracefuly disconnected
causing high CPU usage while using a Reciever thread.

Solution:
add @line 423:

if (bytesRead == -1) {
throw new IOException("Ungraceful TCP socket disconnect");
}