Log4j2 SmtpAppender包含没有堆栈跟踪源代码位置的异常

<?xml version="1.0" encoding="UTF-8"?>
<Configuration status="WARN">
    <Appenders>
        <Smtp name="Mail" subject="Log4j2 Error" to="your-email@example.com" from="log4j2@example.com"
               smtpHost="smtp.example.com" smtpPort="587" smtpUsername="your-username" smtpPassword="your-password"
               smtpProtocol="smtp" smtpDebug="false" bufferSize="512">
            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n%throwable{full}" />
        </Smtp>
    </Appenders>
    <Loggers>
        <Root level="error">
            <AppenderRef ref="Mail" />
        </Root>
    </Loggers>
</Configuration>