get Application Context in not spring beans

ApplicationContextProvider.java

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.core.convert.ConversionService;
import org.springframework.stereotype.Component;

@Component
public class ApplicationContextProvider implements ApplicationContextAware {
	@SuppressWarnings("unused") private static final Logger LOG = LoggerFactory.getLogger(ApplicationContextProvider.class.getName());

	private static ApplicationContext applicationContext = null;

	public static ApplicationContext getApplicationContext() {
		return applicationContext;
	}

	public static ConversionService getConversionService() {
		return applicationContext.getBean("conversionService", ConversionService.class);
	}

	@Override
	public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
		LOG.trace("applicationContext: {}", applicationContext);
		ApplicationContextProvider.applicationContext = applicationContext;
	}
}