EDIT

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

<Configuration status="WARN">

  <Appenders>

    <File name="A1" fileName="A1.log" append="true">

      <XMLLayout/>  <!-- maybe we need to add jackson-dataformat-xml dependency for this -->

    </File>

   <!-- <Console name="STDOUT" target="System.out">

      <PatternLayout  pattern="%d %p [%c] - %m%n"/>

      <Filters>

        <RegexFilter regex=".*has a maxElementsInMemory of 0. This might lead to performance degradation or OutOfMemoryError at Terracotta client.*"

          onMatch="DENY" onMismatch="NEUTRALonMis"/>

        <RegexFilter regex=".*object references was reached while attempting to calculate the size of the object graph.*"

          onMatch="DENY"/>

      </Filters>      

    </Console>-->

  </Appenders>

  <Loggers>

    <Root level="warn">

      <AppenderRef ref="A1"/>

      <!-- <AppenderRef ref="STDOUT"/> -->

    </Root>

    <Logger name="eu.etaxonomy.taxeditor.handler.update.UpdateHandler" level="info"/>

    <Logger name="org.eclipse.equinox.p2.operations.ProvisioningSession" level="info"/>

    <Logger name="org.eclipse.equinox.internal.p2.engine.ProvisioningPlan" level="info"/>

    <Logger name="org.springframework.remoting.httpinvoker.CachingHttpInvokerProxyFactoryBean" level="info"/>

    <!-- ### NOT USED 

    <Logger name="org.hibernate.proxy.AbstractLazyInitializer" level="info"/>

    <Logger name="org.hibernate.collection.internal.AbstractPersistentCollection" level="info"/>

    <Logger name="eu.etaxonomy.taxeditor.service.CdmServiceRequestExecutor" level="info"/>

    <Logger name="eu.etaxonomy.taxeditor.session.DefaultNewEntityListener" level="info"/>

     --> 

  </Loggers> 

</Configuration>