Q:

java infinite loop calling datainputstream receives out of memory exception

I have the following infinite loop which listens for incoming messages:
public static void listenForMessages(){
          while (true) {

                dsocket.receive(receivepacket);
                byte[] rcvMsg = receivepacket.getData();

                MessageCreator tmc = new MessageCreator();
                TrafficMessage message = tmc.constructMessageFromBinary(rcvMsg);

                System.out.println("message: "+message);

        }
 }

This calls a method that reads the byte array into a string and populates a message object. 
public Message constructMessageFromBinary(byte[] rcvMsg)
            throws IOException {
        ByteArrayInputStream bais = new ByteArrayInputStream(rcvMsg);
        DataInputStream dis = new DataInputStream(bais);
        StringBuffer inputLine = new StringBuffer();
        String tmp; 

        while ((tmp = dis.readLine()) ! = null) {
            inputLine.append(tmp);

        }

    dis.close();

        Message message = new Message();
        message.setDescriptions(tmp);

        return message;

    }

This simple process slowly leaks memory over a few hours and I receive an out of memory exception. 
Is there anything wrong with this logic? 

A:

The problem was that I left a database connection open.   I wanted to leave it open to pass data with out having to worry about stopping and starting connections.   I now open and close connections each time and all is good.