dubbo-admin 2.5.4 starts error under JDK8

Error log:

ERROR context.ContextLoader - Context initialization failed
org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘uriBrokerService‘: Cannot create inner bean ‘(inner bean)‘ of type [com.alibaba.citrus.service.uribroker.impl.URIBrokerServiceImpl$URIBrokerInfo] while setting bean property ‘brokers‘ with key [0]; nested excepti
on is org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘(inner bean)#25‘: Cannot create inner bean ‘server‘ of type [com.alibaba.citrus.service.uribroker.uri.GenericURIBroker] while setting constructor argument; nested exception is org.springframework.beans.fact
ory.BeanCreationException: Error creating bean with name ‘server‘: Error setting property values; nested exception is org.springframework.beans.NotWritablePropertyException: Invalid property ‘URIType‘ of bean class [com.alibaba.citrus.service.uribroker.uri.GenericURIBroker]: Bean property ‘URIType‘
is not writable or has an invalid setter method. Does the parameter type of the setter match the return type of the getter?
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveInnerBean(BeanDefinitionValueResolver.java:230)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveValueIfNecessary(BeanDefinitionValueResolver.java:122)
        at org.springframework.beans.factory.support.BeanDefinitionValueResolver.resolveManagedList(BeanDefinitionValueResolver.java:287)

solution:

1. The dependency of webx is changed to version 3.1.6;

<dependency> 
    <groupId>com.alibaba.citrus</groupId> 
    <artifactId>citrus-webx-all</artifactId> 
    <version>3.1.6</version> 
</dependency>

2. Add the dependency of velocity, I used 1.7;

 <dependency>
       <groupId>org.apache.velocity</groupId>
       <artifactId>velocity</artifactId>
       <version>1.7</version>
 </dependency>

3. Add exclusion to dependency dubbo to avoid introducing old spring

 <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>dubbo</artifactId>
        <version>${project.parent.version}</version>
        <exclusions>
            <exclusion>
                <groupId>org.springframework</groupId>
                <artifactId>spring</artifactId>
            </exclusion>
        </exclusions>
    </dependency>

4. Webx already has a dependency of spring 3 or above, so comment out the spring dependency in dubbo-admin

 <!--<dependency>-->
        <!--<groupId>org.springframework</groupId>-->
        <!--<artifactId>spring</artifactId>-->
    <!--</dependency>-->