saleson opened a new issue, #10044:
URL: https://github.com/apache/dubbo/issues/10044
### Environment
* Dubbo version: 3.0.8
* Java version: 1.8
### Steps to reproduce this issue
复现的代码：
```java
public static GenericService getService(String serviceName, String version){
ReferenceConfig<GeniricService> refConf = new ReferenceConfig();
refConf.setProtocol("zookeeper");
refConf.setAddress(registryAddress);
refConf.setRegistry(registryConfig);
refConf.setGeneric("true");
refConf.setInterface(serviceName);
refConf.setVersion(version);
refConf.setTimeout(5000);
return DubboBootstrap.getInstance().getCache().get(refConf);
}
```
### Expected Behavior
从缓存中获取GenericService
### Actual Behavior
没有从缓存中获取，而是直接调用了ReferenceConfig.get()，且执行了ReferenceConfig.init()另外创建了新的GenericService，
在zookeeper上也在相应的service节点下添加了consumer节点。
### Reason
DubboBootstrap.getInstance().getCache()返回的是
CompositeReferenceCache类型的对象，CompositeReferenceCache.get(ReferenceConfigBase)方法没有从缓存中取已经创建好的代理类，而是直接调用了ReferenceConfigBase.get()方法，由于ReferenceConfigBase是一个新对象，ReferenceConfigBase.ref==null，最终执行ReferenceConfigBase.init()方法创建代理类并新增consumer节点。
CompositeReferenceCache.get(ReferenceConfigBase)代码如下：
<img width="765" alt="image"
src="https://user-images.githubusercontent.com/4346834/168599344-1e70b99d-3c90-485f-b0b4-883ada28b64d.png";>
该问题在https://github.com/apache/dubbo/issues/10012
也反映过，但仅修复了SimpleReferenceCache类中的bug。
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![https://user-images.githubusercontent.com/4346834/168599344-1e70b99d-3c90-485f-b0b4-883ada28b64d.png"](https://user-images.githubusercontent.com/4346834/168599344-1e70b99d-3c90-485f-b0b4-883ada28b64d.png"){kind=link}