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Spring factory method

File: context.xml <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN"     "http://www.springframework.org/dtd/spring-beans.dtd"> <beans>   <bean id="pattern" class="java.util.regex.Pattern" factory-method="compile">     <constructor-arg value="abc"/>   </bean> </beans> File: Main.java import java.util.regex.Matcher; import java.util.regex.Pattern; import org.springframework.beans.factory.config.ConfigurableListableBeanFactory; import org.springframework.beans.factory.xml.XmlBeanFactory; import org.springframework.core.io.ClassPathResource; public class Main {   public static void main(String[] args) throws Exception {     ConfigurableListableBeanFactory beanFactory = new XmlBeanFactory(new ClassPathResource(         "context.xml"));     Pattern pattern = (Pattern) beanFactory.getBean("pattern");     Matcher matcher = pattern.matcher("abc abc abc");     int matchCount = 0;     while (matcher.find()) {       matchCount++;     }     System.out.println(matchCount);   } }