How to send a stacktrace to log4j?

Question

Say you catch an exception and get the following on the standard output (like, say, the console) if you do a e.printStackTrace() :

java.io.FileNotFo         


        

Answer 1

If you want to log a stacktrace without involving an exception just do this:

String message = "";

for(StackTraceElement stackTraceElement : Thread.currentThread().getStackTrace()) {                         
    message = message + System.lineSeparator() + stackTraceElement.toString();
}   
log.warn("Something weird happened. I will print the the complete stacktrace even if we have no exception just to help you find the cause" + message);