Published at LXer:

The ability to log important events or errors for problem diagnosis and then checking of application execution is very important. The ability to log certain statements selectively while others are not logged, depending on the context in which the application is running, is also important. An application that is deployed in Apache Geronimo can use any custom logging mechanism to log its messages. However, Apache Geronimo uses log4j and slf4j for logging server log messages. Applications deployed in Geronimo can also leverage the functionality of these logging frameworks.

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