How to catch third party console log using log4j

final Logger myLog4jLogger = Logger.getLogger(getClass());

System.setOut(new PrintStream(new ByteArrayOutputStream() {
    @Override
    public synchronized void write(byte[] pB, int pOff, int pLen) {
        super.write(pB, pOff, pLen);
        myLog4jLogger.info(toString());
        reset();
    }
}));

System.setErr(new PrintStream(new ByteArrayOutputStream() {
    @Override
    public synchronized void write(byte[] pB, int pOff, int pLen) {
        super.write(pB, pOff, pLen);
        myLog4jLogger.warn(toString());
        reset();
    }
}));

<appender name="FILE" class="ch.qos.logback.core.FileAppender">
   <file>myApp.log</file>

   <encoder>
     <pattern>%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n</pattern>
   </encoder>
</appender>

<appender-ref ref="STDOUT" />

<appender-ref ref="FILE" />