@Override
public void environmentPrepared(ConfigurableEnvironment environment) {
    if (executed.compareAndSet(false, true)) {
        String logConfig = environment.getProperty(LoggingApplicationListener.CONFIG_PROPERTY);
        if (StringUtils.isEmpty(logConfig)) {
            URL url = LogbackListener.class.getResource(LOGBACK_CFG_NAME);
            String filePath = url.getPath();
            if (filePath.indexOf(ResourceUtils.JAR_FILE_EXTENSION) > -1) {
                filePath = ResourceUtils.JAR_URL_PREFIX + filePath;
            }
            System.setProperty(LoggingApplicationListener.CONFIG_PROPERTY, filePath);
        }
    }
}
 

@Override
public void environmentPrepared(ConfigurableEnvironment environment) {
    if (executed.compareAndSet(false, true)) {
        String logConfig = environment.getProperty(LoggingApplicationListener.CONFIG_PROPERTY);
        if (StringUtils.isEmpty(logConfig)) {
            URL url = LogbackListener.class.getResource(LOGBACK_CFG_NAME);
            String filePath = url.getPath();
            if (filePath.indexOf(ResourceUtils.JAR_FILE_EXTENSION) > -1) {
                filePath = ResourceUtils.JAR_URL_PREFIX + filePath;
            }
            System.setProperty(LoggingApplicationListener.CONFIG_PROPERTY, filePath);
        }
    }
}
 

@Override
public int getOrder() {

	return LoggingApplicationListener.DEFAULT_ORDER > Ordered.HIGHEST_PRECEDENCE
		? LoggingApplicationListener.DEFAULT_ORDER - 1
		: Ordered.HIGHEST_PRECEDENCE;
}
 

private Collection<? extends ApplicationListener<?>> filterListeners(
		Set<ApplicationListener<?>> listeners) {
	Set<ApplicationListener<?>> result = new LinkedHashSet<>();
	for (ApplicationListener<?> listener : listeners) {
		if (!(listener instanceof LoggingApplicationListener)
				&& !(listener instanceof LoggingSystemShutdownListener)) {
			result.add(listener);
		}
	}
	return result;
}
 

@Override
public int getOrder() {
    return LoggingApplicationListener.DEFAULT_ORDER - 1;
}
 

@Override
public int getOrder() {
    return LoggingApplicationListener.DEFAULT_ORDER - 1;
}
 

@Test
public void getOrderReturnsHigherPrecedenceThanSpringBootLoggingApplicationListenerOrderByDefault() {
	assertThat(this.listener.getOrder()).isLessThan(new LoggingApplicationListener().getOrder());
}