如何打印堆栈跟踪而不会发生错误

Question

Say I have method "a" inside which I have a if condition and in the else block of this if ,I just print log.warn("predefined message"). I want to print stack trace to get where exactly this method is being called and condition got failed.

sudo

enter code here

class test{
 testa(){
   if(condition is true){
       //do the stuff
     }else {
  log.warn("condition failed "); 
  }
   }
      }

I want to print stack trace with log.warn.(I don't want to use Thread.currentThread().getStackTrace(),any other way to do this whitout using Threads)

Answer 1

You can create a Throwable (note that I'm not saying throw one, just create it) and call fillInStackTrace *, then use getStackTrace (or whatever you want to do at that point).

* I think you need to call fillInStackTrace , but the constructor docs seem to suggest the constructor will call it, which makes me wonder why it would be a public method. I'm probably just tired.

Answer 2

您可以使用Thread.currentThread().getStackTrace() 。