Get main class name

Map a = Thread.getAllStackTraces();

for(Thread t : a.keySet()){

if ("main".equals(t.getName())){

StackTraceElement[] stack = t.getStackTrace ();

   StackTraceElement main = stack[stack.length - 1];

   String mainClass = main.getClassName ();

   System.out.println(mainClass);

}

}