Importing XML files with DOCTYPE fails

[kaklakariada]

Importing the following file fails:

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

<configuration>
  <import class="ch.qos.logback.classic.encoder.PatternLayoutEncoder"/>
  <import class="ch.qos.logback.core.ConsoleAppender"/>

  <appender name="STDOUT" class="ConsoleAppender">
    <encoder class="PatternLayoutEncoder">
      <pattern>%d{HH:mm:ss.SSS} [%thread] %-5level %logger{36} -%kvp- %msg%n</pattern>
    </encoder>
  </appender>

  <root level="info">
    <appender-ref ref="STDOUT"/>
  </root>
</configuration>

Expected: importing succeeds and does not find any spec items.