Java, vänta tills det finns data på InputStream

try {
	        System.out.println("Connecting to " + localSettings.getServerAdress() + " on port " + localSettings.getServerPort());
	        Socket client = new Socket(localSettings.getServerAdress(), localSettings.getServerPort());
	        System.out.println("Just connected to "
	                 + client.getRemoteSocketAddress());
	         
	       	InputStream inFromServer = client.getInputStream();
	       	
	       	while(inFromServer.available() == 0) {
	       		try {
					Thread.sleep(100);
				} catch (InterruptedException e) {
					e.printStackTrace();
				}
	       	}
	       	
	       	ObjectInputStream in = new ObjectInputStream(inFromServer);	       	
	       	
	        Incident incident = null;
		try {
			Object incidentTmp = (Incident) in.readObject();
			incident = (Incident) incidentTmp;
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
			
	        client.close();	        	         
	         
	    }
		catch(IOException e)
		{
			e.printStackTrace();
	    }