Can't enable spring orm/transaction logging even when log4j.xml is configured

I have a configuration problem regarding enabling spring related logging in my application as I'm using EclipseLink,JPA 2.0 & Spring 4.0, I need to verify when the entity manager is closed or cleaned up while doing transactions.

My application is JTA enabled so everything is controlled by my container (Websphere).Here is my log4j.xml

<?xml version="1.0"?>
<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">

<log4j:configuration debug="true" xmlns:log4j="http://jakarta.apache.org/log4j/">

    <!-- CONSOLE normally used in desktop environment -->
    <appender name="console" class="org.apache.log4j.ConsoleAppender">
        <param name="Encoding" value="UTF-8" />
        <param name="Threshold" value="DEBUG"/>
        <param name="Target" value="System.out" />
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d [%-8X{context}] %-5p %-40.40c{2} - %m%n"/>
        </layout> 
    </appender>

    <appender name="FILE_APPENDER" class="org.apache.log4j.DailyRollingFileAppender">
        <param name="File" value="C:\\proj\\was\\logs\\spring.log"/>
        <param name="DatePattern" value="'-'yyyy-MM-dd'.txt'"/>
        <param name="Threshold" value="DEBUG"/>
        <layout class="org.apache.log4j.PatternLayout">
            <param name="ConversionPattern" value="%d{yyyy-MM-dd HH:mm:ss} %-4p [%t] %C{2} - %m%n"/>
        </layout>
    </appender>


    <!-- Spring -->
    <logger name="org.springframework.transaction" additivity="false">
        <level value="DEBUG" />
        <appender-ref ref="FILE_APPENDER"/>
    </logger>

    <logger name="org.springframework.orm.jpa.EntityManagerFactoryUtils" additivity="false">
        <level value="DEBUG" />
        <appender-ref ref="FILE_APPENDER"/>
    </logger>

    <logger name="org.springframework.orm.jpa" additivity="false">
        <level value="DEBUG" />
        <appender-ref ref="FILE_APPENDER"/>
    </logger>



     <root>
        <level value="DEBUG" />
        <appender-ref ref="console" />
        <appender-ref ref="FILE_APPENDER" />
    </root> 

</log4j:configuration>

I have also tried many solutions like this, but it didn't help.Please help me where I'm going wrong?