EDIT

  <Appenders>

    <File name="FILE" fileName="cdmlib-commons.log" append="true">

      <!-- header and footer not tested, taken from https://stackoverflow.com/questions/24553348/how-to-produce-a-header-row-in-log4j2 -->

    </File>

    <Console name="STDOUT" target="SYSTEM_OUT">

    <Logger name="eu.etaxonomy.cdm.common" level="warn"/>

    <!-- suppress HHH90000003 (but be aware there might be other deprecations) -->

    <Logger name="org.hibernate.orm.deprecation" level="error"/>  <!-- additivity="false" -->

  </Loggers>

</Configuration>

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

<Configuration>

  <Appenders>

      <PatternLayout pattern="%d{ABSOLUTE} %5p %c{1}:%L - %m%n"/>

    </File>

    <Console name="STDOUT" target="SYSTEM_OUT">

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

<Configuration>

  <Appenders>

      <PatternLayout pattern="%d{ABSOLUTE} %5p %c{1}:%L - %m%n"/>

    </File>

    <Console name="STDOUT" target="SYSTEM_OUT">

         leakages when using DriverManagerConnectionProvider -->

    <!-- Logger name="org.hibernate.connection.DriverManagerConnectionProvider" level="debug"/ -->

    <Logger name="org.hibernate.orm.deprecation" level="error"/>

  </Loggers>

</Configuration>