Indicate new line into console input, without pressing enter key?

Question

I have the following problem, I'm working with a BufferedReader to read some lines that enter from console. The thing is that I haven't been able to figure out how to read the last line without pressing enter key. For example, using the following code

public void readEntry(){
    BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
    try{    
        boolean first = true;
        while(true)
        {   
            String line = br.readLine();
            if(first)
            {
                System.out.println();
                first = false;
            }
            System.out.println(line);
        }
    }
    catch (Exception e){
        System.out.println(e.getMessage());}
}

And the following entry

line1
line2
line3

I get this output

line1
line2

Is there a way to indicate to the console that there is a third line, without manually pressing enter key?

Thank you!