Hi, We have a requirement where we would like to retrieve Calling Class name(with Package structure)and use it inside the called class. I have searched and found out two ways ... 1) String callingClassName = new Throwable().fillInStackTrace().getStackTrace()[1].getClassName(); and 2) String callingClassName = sun.reflect.Reflection.getCallerClass(2).getName(); but these two approaches pose performance issue as both take arround 15-16 millisecond to execute, which is not acceptable in large application. Any other suggestions or enhancement to above two approaches would be highly appreciated.

Hi, I dont think u can do without using reflection unless u main a call trace programmatically which will have a memory foot print. So choose one of them Thanx and Regards KR Kumar

Hi Kumar, I was thinking of using a static ThreadLocal variable and setting a unique value to it in the application's main thread. then accessing the same in my class where ever i would like to distinguish calling threads and control my flow. I tried this approach now and its working fine.