log4j.properties being ignored

I have a Java EE 6 Wicket application deployed with maven using IntelliJ IDEA 9.0.3 on glassfish v3.0.1. I use slf4j-log4j12-1.5.6 with slf4j-api-1.5.8 and log4j-1.2.16 for logging.

It was previously working fine when I deployed through netbeans or eclipse, however when I deploy with IntelliJ IDEA my log4j.properties file is ignored and glassfish's logging handles my log messages. I do not think IDEA has anything to do with it, something else must have changed I just can't figure out what.

I have verified that my log4j.properties file is in my WEB-INF/classes directory and the slf4j/log4j jars are in the WEB-INF/lib directory of my war. Is there some sort of configuration I am missing to make this work?

thanks.

edit: Updated with more info, posted pom dependencies.

Here is the relevant section from my pom.xml:

    <!-- Guava -->

    <dependency>
        <groupId>com.google.guava</groupId>
        <artifactId>guava</artifactId>
        <version>r05</version>
    </dependency>

    <!-- Test -->

    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>4.7</version>
        <scope>test</scope>
    </dependency>
    <dependency>
        <groupId>org.glassfish.extras</groupId>
        <artifactId>glassfish-embedded-all</artifactId>
        <version>3.0</version>
        <scope>test</scope>
    </dependency>

    <!-- Java EE 6 -->

    <dependency>
        <groupId>org.glassfish</groupId>
        <artifactId>bean-validator</artifactId>
        <version>3.0-JBoss-4.0.0.Beta3</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>6.0</version>
        <scope>provided</scope>
    </dependency>

    <!-- Wicket -->

    <dependency>
        <groupId>org.apache.wicket</groupId>
        <artifactId>wicket</artifactId>
        <version>1.4.9</version>
    </dependency>
    <dependency>
        <groupId>org.apache.wicket</groupId>
        <artifactId>wicket-auth-roles</artifactId>
        <version>1.4.9</version>
    </dependency>
    <dependency>
        <groupId>org.jboss.weld</groupId>
        <artifactId>weld-wicket</artifactId>
        <version>1.0.1-Final</version>
    </dependency>

    <!-- Hibernate -->

    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-core</artifactId>
        <version>3.5.1-Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-annotations</artifactId>
        <version>3.5.1-Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-commons-annotations</artifactId>
        <version>3.2.0.Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-entitymanager</artifactId>
        <version>3.5.1-Final</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-c3p0</artifactId>
        <version>3.5.1-Final</version>
    </dependency>


    <!-- Database -->

    <dependency>
        <groupId>postgresql</groupId>
        <artifactId>postgresql</artifactId>
        <version>8.4-701.jdbc4</version>
    </dependency>


    <!-- Logging -->

    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>1.5.6</version>
    </dependency>
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>1.2.16</version>
    </dependency>

</dependencies>