[jetty-users] Jetty + Slf4j

[Diego Plentz <diego@xxxxxxxxxx>]

Hey guys,

I'm using jetty 6.1.x installed through apt-get in a Ubuntu box. When I deploy my application, I have a problem with slf4j. If I deploy my war with slf4j-log4j12-1.5.8.jar, I have this message:

SLF4J: Class path contains multiple SLF4J bindings.

SLF4J: Found binding in [jar:file:/usr/share/java/slf4j-simple-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: Found binding in [jar:file:/var/cache/jetty/Jetty_0_0_0_0_8080_suporte_promotor.war___suporte.promotoronline.com.br_ivstzq/webapp/WEB-INF/lib/slf4j-log4j12-1.5.8.jar!/org/slf4j/impl/StaticLoggerBinder.class]

SLF4J: See http://www.slf4j.org/codes.html#multiple_bindings for an explanation.

But, if I remove the jar from the war file, I have a NoClassDefFoundError:

Caused by: java.lang.NoClassDefFoundError: org/slf4j/impl/StaticLoggerBinder

at org.slf4j.LoggerFactory.getSingleton(LoggerFactory.java:223)

at org.slf4j.LoggerFactory.bind(LoggerFactory.java:120)

at org.slf4j.LoggerFactory.performInitialization(LoggerFactory.java:111)

at org.slf4j.LoggerFactory.getILoggerFactory(LoggerFactory.java:269)

....

What is the correct behavior?

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