DEBUG

Information only valuable for developers to analyze the internal status of a program.

PATH

Information for Java developers and support engineers to understand the execution flow of a program. The method calls that supply information on this severity level are: entering(), exiting(), throwing() and catching().

INFO

Information, valuable for support engineers and Java developers to understand and trace the business logic.

ERROR

Information describing error conditions in program execution, which terminate the current application without fulfilling the desired task. The application remains usable afterwards. The method assertion() is used to test a Boolean expression and stop with an error if it is not fulfilled.

Also, technical context information in exception must use severity ERROR.