When no src/main/resources/log4j.properties snow error does not show

[jeremychone]

Step to reproduce

• Create a class with a @webget or something
• Do not add the @singleton on the class
• Have the slf4j-log4j12 in the pom.xml
• Do not have a log4j.properties
• use mvn jetty:run
• Start the app, and go to any URL

Actual result

• The page is blank and no error on the system log.

The problem, is that if there is no src/main/resources/log4j.properties in the source, then, we do not see the error on snow. In this case, Snow cannot start because it requires to have @singleton on any class that have @web... methods, but because the developer does not see the error, it is very hard to find out why.

Proposed solution

We need to find a way that even of the log4j.properties has not be configured but the slf4j-log4j12 is present, we still log those errors to the console.