Spring BootでLog4J2複合構成を使用する方法

次のPOMを使用して、log4j2でSpring Boot 2.0.1スターターを使用しています。WARファイルは、Tomcat 8でホストされます（組み込みのtomcatを使用する代わり）。アプリケーションログは、ログファイルではなくコンソールに書き込まれます。どうやらSpring BootのXML構成は、アプリケーションで構成されたものを上書きします。

POM：

<dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter</artifactId>
        <exclusions>
            <exclusion>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-logging</artifactId>
            </exclusion>
        </exclusions>
    </dependency>
    <dependency>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-log4j2</artifactId>
    </dependency>
    <dependency>
        <groupId>org.apache.logging.log4j</groupId>
        <artifactId>log4j-web</artifactId>
    </dependency>

Log4j2構成が2つのxmlファイルに分割された複合コンフィギュレーションを使用していますlog4j2-base.xmlし、log4j2-env.xml

リソースディレクトリにはlog4j2.component.properties、次のコンテンツが含まれています。

log4j.configurationFile=log4j2-base.xml,log4j2-env.xml

リソースディレクトリにはも含まれますlog4j2-base.xml。ファイルlog4j2-env.xmlは、クラスパスにすでに配置されている環境固有のJARファイルの一部です。

ログ：

DEBUG StatusLogger Configuration XmlConfiguration[location=jar:file:/usr/mware/jwsAppDetails/app1/webapps/myProject/WEB-INF/lib/spring-boot-2.0.1.RELEASE.jar!/org/springframework/boot/logging/log4j2/log4j2.xml] initialized
DEBUG StatusLogger Starting configuration XmlConfiguration[location=jar:file:/usr/mware/jwsAppDetails/app1/webapps/myProject/WEB-INF/lib/spring-boot-2.0.1.RELEASE.jar!/org/springframework/boot/logging/log4j2/log4j2.xml]
DEBUG StatusLogger Started configuration XmlConfiguration[location=jar:file:/usr/mware/jwsAppDetails/app1/webapps/myProject/WEB-INF/lib/spring-boot-2.0.1.RELEASE.jar!/org/springframework/boot/logging/log4j2/log4j2.xml] OK.
TRACE StatusLogger Stopping org.apache.logging.log4j.core.config.composite.CompositeConfiguration@40575bb9 [configurations=[XmlConfiguration[location=/usr/mware/jwsAppDetails/app1/webapps/myProject/WEB-INF/classes/log4j2-base.xml], XmlConfiguration[location=jar:file:/usr/mware/jwsAppDetails/app1/lib/myProject.jar!/log4j2-env.xml]], mergeStrategy=org.apache.logging.log4j.core.config.composite.DefaultMergeStrategy@583fc0cb, rootNode=null, listeners=[], pluginPackages=[], pluginManager=org.apache.logging.log4j.core.config.plugins.util.PluginManager@278307b, isShutdownHookEnabled=true, shutdownTimeoutMillis=0, scriptManager=org.apache.logging.log4j.core.script.ScriptManager@185463aa]...
TRACE StatusLogger CompositeConfiguration notified 8 ReliabilityStrategies that config will be stopped.
TRACE StatusLogger CompositeConfiguration stopping 7 LoggerConfigs.
TRACE StatusLogger CompositeConfiguration stopping root LoggerConfig.
TRACE StatusLogger CompositeConfiguration notifying ReliabilityStrategies that appenders will be stopped.
TRACE StatusLogger CompositeConfiguration stopping remaining Appenders.
DEBUG StatusLogger Shutting down RollingFileManager null
DEBUG StatusLogger Shutting down RollingFileManager {}null
DEBUG StatusLogger All asynchronous threads have terminated
DEBUG StatusLogger RollingFileManager shutdown completed with status true
DEBUG StatusLogger Shut down RollingFileManager null, all resources released: true
DEBUG StatusLogger Appender RollingFile stopped with status true
TRACE StatusLogger CompositeConfiguration stopped 1 remaining Appenders.
TRACE StatusLogger CompositeConfiguration cleaning Appenders from 8 LoggerConfigs.
DEBUG StatusLogger Stopped org.apache.logging.log4j.core.config.composite.CompositeConfiguration@40575bb9 [configurations=[XmlConfiguration[location=/usr/mware/jwsAppDetails/app1/webapps/myProject/WEB-INF/classes/log4j2-base.xml], XmlConfiguration[location=jar:file:/usr/mware/jwsAppDetails/app1/lib/myProject.jar!/log4j2-env.xml]], mergeStrategy=org.apache.logging.log4j.core.config.composite.DefaultMergeStrategy@583fc0cb, rootNode=null, listeners=[], pluginPackages=[], pluginManager=org.apache.logging.log4j.core.config.plugins.util.PluginManager@278307b, isShutdownHookEnabled=true, shutdownTimeoutMillis=0, scriptManager=org.apache.logging.log4j.core.script.ScriptManager@185463aa] OK
TRACE StatusLogger Reregistering MBeans after reconfigure. Selector=org.apache.logging.log4j.core.selector.ClassLoaderContextSelector@77aa3299
TRACE StatusLogger Reregistering context (1/1): '2190fd23' org.apache.logging.log4j.core.LoggerContext@64150381