log4j-core-test/src/test/resources/log4j-rolling-count.xml

<?xml version="1.0" encoding="UTF-8"?>
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<Configuration status="error" name="XmlProperties">
  <Properties>
    <Property name="baseFilename">target/rolling_count/rolling_test.log</Property>
    <Property name="pattern">%d{HH:mm:ss.SSS} [%t] %-5level %logger{1.} - %msg%n</Property>
  </Properties>

  <Appenders>
    <Console name="Console" target="SYSTEM_OUT">
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
    </Console>
    <RollingFile name="RollingFile" fileName="${baseFilename}" filePattern="${baseFilename}.%02i" immediateFlush="true" append="true">
      <PatternLayout pattern="${pattern}"/>
      <Policies>
        <SizeBasedTriggeringPolicy size="1 KB"/>
      </Policies>
      <DefaultRolloverStrategy max="15"/>
    </RollingFile>
  </Appenders>
  <Loggers>
    <Logger name="LogTest" level="trace"/>
    <Logger name="org.apache.logging.log4j.status" level="trace"/>
    <Root level="info">
      <AppenderRef ref="RollingFile"/>
    </Root>
  </Loggers>
</Configuration>