SLF4J exception when deploying to weblogic - grails

Question

We've started getting the following exception when deploying to Weblogic:
org.springframework.beans.factory.BeanCreationException: Error creating bean with name
'alertService': Initialization of bean failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mailService': Initialization of bean failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mailMessageBuilderFactory': Initialization of bean failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'mailMessageContentRenderer': Initialization of bean failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'groovyPagesTemplateEngine': Cannot resolve reference to bean 'gspTagLibraryLookup' while setting bean property 'tagLibraryLookup'; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'gspTagLibraryLookup': Invocation of init method failed; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'grails.plugin.springsecurity.SecurityTagLib': Initialization of bean failed; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'webInvocationPrivilegeEvaluator': Cannot resolve reference to bean 'filterInvocationInterceptor' while setting constructor argument; nested exception is
org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'filterInvocationInterceptor': Invocation of init method failed; nested exception is
java.lang.NoSuchMethodError: org.slf4j.helpers.MessageFormatter.arrayFormat(Ljava/lang/String;
[Ljava/lang/Object;)Lorg/slf4j/helpers/FormattingTuple;
I've tried removing the slf4j jar from my ear. I've also tried putting the following in my weblogic-appliction.xml:
<prefer-application-packages>
<package-name>org.slf4j.*</package-name>
</prefer-application-packages>
<prefer-application-resources>
<resource-name>org/slf4j/impl/StaticLoggerBinder.class</resource-name>
</prefer-application-resources>
Nothing has worked thus far. Basically, I've tried all of the different things that I've found online. Usually, when I have a conflict with a jar that I'm providing myself and that Weblogic is also providing, just using the prefer-application-packages does the trick.
I'm using Grails 2.3.6 with Weblogic 10.3.6.

Answer 1

In case anyone comes across this issue, this is what my problem ended up being:
What was happening is that we were including the activemq-all artifact for JMS stuff, and this artifact is what they call an "uber" jar. It as a ton of dependencies baked into it that cannot be excluded via maven – one of those dependencies was an old version of slf4j. So, even though I had the "prefer-application-packages" set in Weblogic for slf4j, it wasn't using the Grails provided version, but rather the activemq one. Rather than using the activemq-all dependency, I switched to use individual components from activemq and was able to at that point exclude slf4j. This solved my issue.