使用ConfigurationManager报错Cannot access org.apache.commons.configuration.event.EventSource

使用idea对ribbon进行demo测试(eclipse使用正常)：
在使用ribbon的原生api进行负载均衡，添加了依赖

<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon-core</artifactId>
    <version>2.2.2</version>
</dependency>
<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon-httpclient</artifactId>
    <version>2.2.2</version>
</dependency>

在使用com.netflix.config.ConfigurationManager包下的api时，会出现上述报错，原因时缺少依赖;
需要添加依赖有：

<dependency>
    <groupId>commons-configuration</groupId>
    <artifactId>commons-configuration</artifactId>
    <version>1.10</version>
</dependency>

<dependency>
    <groupId>com.netflix.ribbon</groupId>
    <artifactId>ribbon-loadbalancer</artifactId>
    <version>2.2.2</version>
</dependency>
<dependency>
    <groupId>com.google.guava</groupId>
    <artifactId>guava</artifactId>
    <version>18.0</version>
</dependency>
<dependency>
    <groupId>com.netflix.archaius</groupId>
    <artifactId>archaius-core</artifactId>
    <version>0.7.4</version>
</dependency>