xml inclusion does not work

[DemS98]

In a Quarkus test project, I've defined a logback.xml inside src/main/resources with this inclusion

<?xml version="1.0" encoding="UTF-8"?>
<configuration>
    <include resource="logger.xml" />

</configuration>

logger.xml is a file inside an external dependency, that contains the loggers definition

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

    <conversionRule conversionWord="iso8601nano"
                    converterClass="com.dems98.test.log.converter.Iso8601NanoConverter" />

    <appender name="STDOUT"
              class="ch.qos.logback.core.ConsoleAppender">
        <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
            <level>INFO</level>
        </filter>
        <encoder>
            <pattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} [%t] %-5level %logger{36} - %.-100000msg%n</pattern>
        </encoder>
    </appender>

    <if condition='"${LOG_DESTINATION:-FILE}".equals("FILE")'>
        <then>
            <appender name="ROLLING_FILE_SPRING_BOOT"
                      class="ch.qos.logback.core.rolling.RollingFileAppender">
                <file>/var/log/server/${NAME}.log</file>
                <rollingPolicy
                        class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
                    <fileNamePattern>/var/log/%d{yyyy-MM-dd_HH, UTC}.${NAME}.server-log.%i.zip</fileNamePattern>
                    <maxFileSize>100MB</maxFileSize>
                    <maxHistory>3</maxHistory>
                    <totalSizeCap>300MB</totalSizeCap>
                </rollingPolicy>
                <filter class="ch.qos.logback.classic.filter.ThresholdFilter">
                    <level>INFO</level>
                </filter>
                <encoder>
                    <pattern>%d{yyyy-MM-dd'T'HH:mm:ss.SSSZ} [%t] %-5level %logger{36} - %.-100000msg%n</pattern>
                </encoder>
            </appender>
        </then>
    </if>

    <if condition='"${LOG_DESTINATION:-FILE}".equals("CONSOLE")'>
        <then>
            <appender name="ROLLING_FILE_APP"
                      class="ch.qos.logback.core.ConsoleAppender">
                <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
                    <providers>
                        <pattern>
                            <omitEmptyFields>true</omitEmptyFields>
                            <pattern>
                                {
                                        "timestamp": "%iso8601nano{UTC}",
                                        "correlation-id": "%mdc{correlation-id}",
                                        "message": "%.-100000msg%replace(%n%.-100000ex){'^\\s+$$',''}",
                                        "level": "%level",
                                        "version": "${VERSION}",
                                        "class": "%logger",
                                        "thread": "%t"
                                }
                            </pattern>
                        </pattern>
                    </providers>
                </encoder>
            </appender>
        </then>
        <else>
            <appender name="ROLLING_FILE_APP"
                      class="ch.qos.logback.core.rolling.RollingFileAppender">
                <file>/var/log/${NAME}.log</file>
                <rollingPolicy
                        class="ch.qos.logback.core.rolling.SizeAndTimeBasedRollingPolicy">
                    <fileNamePattern>/var/log/%d{yyyy-MM-dd_HH, UTC}.${NAME}.log.%i.zip</fileNamePattern>
                    <maxFileSize>100MB</maxFileSize>
                    <maxHistory>3</maxHistory>
                    <totalSizeCap>300MB</totalSizeCap>
                </rollingPolicy>
                <encoder class="net.logstash.logback.encoder.LoggingEventCompositeJsonEncoder">
                    <providers>
                        <pattern>
                            <omitEmptyFields>true</omitEmptyFields>
                            <pattern>
                                {
                                        "timestamp": "%iso8601nano{UTC}",
                                        "correlation-id": "%mdc{correlation-id}",
                                        "message": "%.-100000msg%replace(%n%.-100000ex){'^\\s+$$',''}",
                                        "level": "%level",
                                        "version": "${VERSION}",
                                        "class": "%logger",
                                        "thread": "%t"
                                }
                            </pattern>
                        </pattern>
                    </providers>
                </encoder>
            </appender>
        </else>
    </if>

    <logger name="com.test" level="${LOG_LEVEL:-INFO}" additivity="false">
        <appender-ref ref="ROLLING_FILE_APP" />
    </logger>

    <root level="DEBUG">
        <appender-ref ref="STDOUT" />
        <if condition='"${LOG_DESTINATION:-FILE}".equals("FILE")'>
            <then>
                <appender-ref ref="ROLLING_FILE_SPRING_BOOT" />
            </then>
        </if>
    </root>
</included>

This configuration gives me this warning

WARN in ch.qos.logback.core.joran.util.ConfigurationWatchListUtil@4b06f969 - Null ConfigurationWatchList. Cannot add jar:file:///C:/Users/dems98/.m2/repository/com/dems98/1.8/test.jar!/logger.xml

and logs are not produced.

But, if I remove the inclusion and move the logger.xml content inside logback.xml, everything works!

So I believe there's a bug with the xml inclusions.