tomcat 启动项目报错: 请各位大侠 帮帮忙，这是什么原因啊？

ERROR] Context initialization failed [org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:215)][main] 0 2013-06-21 20:20:35,255
org.springframework.beans.factory.BeanDefinitionStoreException: Parser configuration exception parsing XML from file [D:\InStall\Tomcat6\V1\webapps\search\WEB-INF\classes\contexts\applicationContext-se.xml]; nested exception is javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@76136c55] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.
Caused by: javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@76136c55] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.

2013-6-21 20:20:35 org.apache.catalina.core.StandardContext listenerStart
严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener
org.springframework.beans.factory.BeanDefinitionStoreException: Parser configuration exception parsing XML from file [D:\InStall\Tomcat6\V1\webapps\search\WEB-INF\classes\contexts\applicationContext-se.xml]; nested exception is javax.xml.parsers.ParserConfigurationException: Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@76136c55] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.
DocumentLoader.java:102)

Unable to validate using XSD: Your JAXP provider [gnu.xml.dom.JAXPFactory@76136c55] does not support XML Schema. Are you running on Java 1.4 with Apache Crimson? Upgrade to Apache Xerces (or Java 1.5) for full XSD support.
DocumentLoader.java:102)
人家不都说了吗，换成jdk1.5或者是用apache xerces（开源组件）来解析配置文件试试

没看懂什么意思？