public class MyException extends Exception
{
    private List<String> stackLines = new ArrayList<String>();

    private static boolean show = false;

    public static void showFullStack(boolean show)
    {
        MyException.showFullStack = show;
    }

     public MyException(String message, Throwable cause)
    {
        super(message);
        StackTraceElement[] stackTraceElements = cause.getStackTrace();
        stackLines.add(message);
        if(show)
        {
            for (StackTraceElement el : stackTraceElements)
            {
                stackLines.add(el.toString());
            }
        }

    }

    public void printStackTrace()
    {
        for (String mess : stackLines)
        {
            System.out.println(mess);
        }
    }
}

MyException.showFullStack(true);
try
{
   //code
}
catch(MyException e)
{
   e.printStackTrace();
}

MyException.showFullStack(true);

public static void showFullStack()
    {
        MyException.showFullStack = true;
    }