Could you suggest me a pattern to log exceptions during java application lifecycle? -

i want use simple java.util.logging.* package log exceptions. suggestions, links, articles in basic elegant way? should implement in java ee application.

i thinking singleton class... think?

the following doesn't handle case of logging exceptions automatically might closer. @ current company extended exception companyexception supported list of callbacks. like:

public abstract class companyexception extends exception {     private static final list<exceptioncallback> callbacks =             new arraylist<exceptioncallback>();      public companyexception(string message) {         super(message);         invokecallbacks();     }      // register class called whenever exception constructed     public static void registercallback(exceptioncallback callback) {         // expect registers done long before first exception thrown         list<exceptioncallback> newcallbacks = new arraylist<exceptioncallback>();         newcallbacks.addall(callbacks);         newcallbacks.add(callback);         callbacks = newcallbacks;     }      private void invokecallbacks() {         (exceptioncallback callback : callbacks) {             try {                 callback.exceptionconstructed(this);             } catch (throwable th) {                 // ignore because can't go recursive              }         }     } } 

the callback simple interface:

public interface exceptioncallback {     public void exceptionconstructed(exception exception); } 

then of our internal exceptions throw these or rethrow/wrap external exceptions. register logging class log exceptions using log4j or our internal logging mechanisms. exception logging wanted separation. our logger had dedicated thread in background , send central logging server. need very careful recursion if throw while logging.