Does the parameter type of the setter match the return type of the getter?

JDK 1.8, dubbo-admin版本是2.5.4-SNAPSHOT，tomcat8.5启动，报错：

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)

解决办法：
　　1、webx的依赖改为3.1.6版；

<dependency>

    <groupId>com.alibaba.citrus</groupId>

    <artifactId>citrus-webx-all</artifactId>

    <version>3.1.6</version>

</dependency>

　　2、添加velocity的依赖，我用了1.7；

<dependency>

    <groupId>org.apache.velocity</groupId>

    <artifactId>velocity</artifactId>

    <version>1.7</version>

</dependency>

　　3、对依赖项dubbo添加exclusion，避免引入旧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已有spring 3以上的依赖，因此注释掉dubbo-admin里面的spring依赖

<!--<dependency>-->

    <!--<groupId>org.springframework</groupId>-->

    <!--<artifactId>spring</artifactId>-->

<!--</dependency>-->

　　确定war包解压后lib目录没有spring 3 以下的依赖就行。然后运行正常了。

　　解决方式来源于：https://github.com/alibaba/dubbo/issues/50   stirp网友