weblogic 12c with logback

JAVA WEB Application에서 logback을 사용하고 있을때,

Tomcat으로 deploy 했을때는 정상작동 했지만

weblogic 에서는 null 에러가 발생하면서, 

####<2017. 9. 12 오후 6시 08분 26초 KST> <Info> <ServletContext-> <RLPSWAS> <Server-0-AAAAAA> <[STANDBY] ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'> <weblogic> <> <> <1505207306408> <BEA-000000> <Shutting down Logback> 

####<2017. 9. 12 오후 6시 08분 26초 KST> <Warning> <HTTP> <RLPSWAS> <Server-0-AAAAAA> <[STANDBY] ExecuteThread: '4' for queue: 'weblogic.kernel.Default (self-tuning)'> <weblogic> <> <> <1505207306414> <BEA-101162> <User defined listener ch.qos.logback.ext.spring.web.LogbackConfigListener failed: java.lang.NullPointerException.

java.lang.NullPointerException

at ch.qos.logback.ext.spring.LogbackConfigurer.shutdownLogging(Unknown Source)

at ch.qos.logback.ext.spring.web.WebLogbackConfigurer.shutdownLogging(Unknown Source)

at ch.qos.logback.ext.spring.web.LogbackConfigListener.contextDestroyed(Unknown Source)

at weblogic.servlet.internal.EventsManager$FireContextListenerAction.run(EventsManager.java:679)

at weblogic.security.acl.internal.AuthenticatedSubject.doAs(AuthenticatedSubject.java:321)

at weblogic.security.service.SecurityManager.runAs(SecurityManager.java:120)

at weblogic.servlet.provider.WlsSubjectHandle.run(WlsSubjectHandle.java:57)

인터넷의 여러 자료를 찾아서 시도하던 중.

시도1. weblogic.xml 파일 내에

<prefer-web-inf-classes>true</prefer-web-inf-classes> 추가

하지만 여전히 동일한 에러 발생한다.

시도2. weblogic.xml 파일 내에

<show-archived-real-path-enabled>true</show-archived-real-path-enabled> 추가

성공

최종 weblogic.xml

<?xml version="1.0" encoding="UTF-8"?>

<weblogic-web-app xmlns:wls="http://www.bea.com/ns/weblogic/weblogic-web-app"

xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd http://www.bea.com/ns/weblogic/weblogic-web-app http://www.bea.com/ns/weblogic/weblogic-web-app/1.3/weblogic-web-app.xsd">

<context-root>/</context-root>

<container-descriptor>

<show-archived-real-path-enabled>true</show-archived-real-path-enabled><!-- logback 사용하기 위해 -->

<prefer-web-inf-classes>true</prefer-web-inf-classes><!-- logback 사용하기 위해 -->

</container-descriptor>

</weblogic-web-app>