【原创】问题定位分享（15）Context namespace element 'component-scan' and its parser class [org.springframework.context.annotation.ComponentScanBeanDefinitionParser] are only available on JDK 1.5 and higher

今天尝试运行一个古老的工程，配置好之后编译通过，结果运行时报错：

org.springframework.beans.factory.BeanDefinitionStoreException: Unexpected exception parsing XML document from class path resource [applicationContext.xml]; nested exception is java.lang.IllegalStateException: org.sprin