Chapter 1. J2EE introduction 21
Trace log
This log can be enabled to trace internal components of the application
server. It is useful in problem determination when information recorded in the
other logs is insufficient.
Service log
This log records all WebSphere system events.
How logging is implemented in a J2EE application is left to the discretion of the
application developers. However, there are logging APIs available for purchase
from a number of vendors. One of the most widely used APIs for logging is the
log4j API available from the Apache Software Foundation at the following URL:
http://jakarta.apache.org/log4j
1.2 Development
It is possible to develop a Java application using a text editor, but developing
Web applications requires ...