dubbo监控报错Error creating bean with name 'uriBrokerService'

在jdk1.8下面会出现此错误

解决方法：

1、更换服务器jdk版本。（会影响其他项目环境）

2、修改dubbo-admin tomcat默认jdk版本。

3、修改dubbo-admin项目依赖（dependency）从新打包。

进入https://github.com/alibaba/dubbo，在release中找到2.5.4发行版，下载下来重新编译dubbo-admin重新编译。但是我编译报错

org.springframework.beans.factory.BeanDefinitionStoreException: IOException parsing XML document from ServletContext resource [/WEB-INF/applicationContext.xml]; nested exception is java.io.FileNotFoundException: Could not open ServletContext resource [/WEB-INF/applicationContext.xml]
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:)
    at org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:)
    at org.springframework.beans.factory.support.AbstractBeanDefinitionReader.loadBeanDefinitions(AbstractBeanDefinitionReader.java:)
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:)
    at org.springframework.web.context.support.XmlWebApplicationContext.loadBeanDefinitions(XmlWebApplicationContext.java:)
    at org.springframework.context.support.AbstractRefreshableApplicationContext.refreshBeanFactory(AbstractRefreshableApplicationContext.java:)
    at org.springframework.context.support.AbstractApplicationContext.obtainFreshBeanFactory(AbstractApplicationContext.java:)
    at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:)
    at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:)
    at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:)
    at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:)
    at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:)
    at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:)
    at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:)
    at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:)
    at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:)
    at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:)
    at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:)