What is JUL (Java Util Logging) ?

Java Util Log­ging (JUL) is Java 's own log­ging frame­work to make log­ging more con­fig­urable then the pre­vi­ous usage of System.out.println(), System.err.println() and e.printStackTrace() usage.

JUL is provided by Java package java.util.logging (introduced in 2002 with Java 1.4)

Java Util Log­ging is not very devel­oper friendly.

It con­tains just a very basic way of log­ging, a method called log where you always have to indi­cate the level.

And those lev­els are not very clear for usage :

• SEVERE
• WARNING
• INFO
• CONFIG
• FINE
• FINER
• FINEST