Spring logs not written in log4j2

Since the other answers don't spell it out in the actual answer, the solution is to add the Commons Logging Bridge dependency below to the Maven pom.xml file.

As stated on the Apache Log4j web page:

If existing components use Apache Commons Logging 1.x and you want to have this logging routed to Log4j 2, then add the following but do not remove any Commons Logging 1.x dependencies.

<dependencies>  ...  <dependency>    <groupId>org.apache.logging.log4j</groupId>    <artifactId>log4j-jcl</artifactId>    <version>2.1</version>  </dependency>  ...</dependencies>

See the example below of the effect of adding this dependency in:

Before:

May 11, 2015 8:10:41 PM org.springframework.context.support.ClassPathXmlApplicationContext prepareRefreshINFO: Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@300ffa5d: startup date [Mon May 11 20:10:41 IST 2015]; root of context hierarchyMay 11, 2015 8:10:42 PM org.springframework.beans.factory.xml.XmlBeanDefinitionReader loadBeanDefinitionsINFO: Loading XML bean definitions from class path resource [datapower.xml]May 11, 2015 8:10:42 PM org.springframework.ws.soap.saaj.SaajSoapMessageFactory afterPropertiesSetINFO: Creating SAAJ 1.3 MessageFactory with SOAP 1.1 ProtocolMay 11, 2015 8:10:42 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromContextPathINFO: Creating JAXBContext with context path [com.datapower.schemas.management]May 11, 2015 8:10:45 PM org.springframework.oxm.jaxb.Jaxb2Marshaller createJaxbContextFromContextPathINFO: Creating JAXBContext with context path [com.datapower.schemas.management]May 11, 2015 8:10:47 PM org.springframework.ws.soap.saaj.SaajSoapMessageFactory afterPropertiesSetINFO: Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol

After:

22:07:21.925 [main] INFO  org.springframework.context.support.ClassPathXmlApplicationContext - Refreshing org.springframework.context.support.ClassPathXmlApplicationContext@22eeefeb: startup date [Mon May 11 22:07:21 IST 2015]; root of context hierarchy22:07:21.950 [main] INFO  org.springframework.beans.factory.xml.XmlBeanDefinitionReader - Loading XML bean definitions from class path resource [datapower.xml]22:07:22.059 [main] INFO  org.springframework.ws.soap.saaj.SaajSoapMessageFactory - Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol22:07:22.068 [main] INFO  org.springframework.oxm.jaxb.Jaxb2Marshaller - Creating JAXBContext with context path [com.datapower.schemas.management]22:07:24.446 [main] INFO  org.springframework.oxm.jaxb.Jaxb2Marshaller - Creating JAXBContext with context path [com.datapower.schemas.management]22:07:26.554 [main] INFO  org.springframework.ws.soap.saaj.SaajSoapMessageFactory - Creating SAAJ 1.3 MessageFactory with SOAP 1.1 Protocol