- [x] I have searched the
[issues](https://github.com/apache/incubator-dubbo/issues) of this repository
and believe that this is not a duplicate.
- [x] I have checked the
[FAQ](https://github.com/apache/incubator-dubbo/blob/master/FAQ.md) of this
repository and believe that this is not a duplicate.
### Environment
* Dubbo version: 2.7.0-SNAPSHOT
* Operating System version: mac pro
* Java version: 1.8
### Step to reproduce this issue
1. Assume that the configuration file contains the following configuration：
``` xml
<dubbo:reference id="demoService" check="false"
interface="org.apache.dubbo.http2.DemoService" protocol-config="http2"/>
```
2. Starting the application will give an error：
```
Exception in thread "main"
org.springframework.beans.factory.BeanCreationException: Error creating bean
with name 'demoService': Error setting property values; nested exception is
org.springframework.beans.NotWritablePropertyException: Invalid property
'protocol-config' of bean class [org.apache.dubbo.config.spring.ReferenceBean]:
Bean property 'protocol-config' is not writable or has an invalid setter
method. Did you mean 'protocolConfig'?
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1570)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1280)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:553)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:483)
at
org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:312)
at
org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:230)
at
org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:308)
at
org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:197)
at
org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:742)
at
org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:867)
at
org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:139)
at
org.springframework.context.support.ClassPathXmlApplicationContext.<init>(ClassPathXmlApplicationContext.java:93)
at org.apache.dubbo.http2.consumer.Consumer.main(Consumer.java:29)
Caused by: org.springframework.beans.NotWritablePropertyException: Invalid
property 'protocol-config' of bean class
[org.apache.dubbo.config.spring.ReferenceBean]: Bean property 'protocol-config'
is not writable or has an invalid setter method. Did you mean 'protocolConfig'?
at
org.springframework.beans.BeanWrapperImpl.createNotWritablePropertyException(BeanWrapperImpl.java:239)
at
org.springframework.beans.AbstractNestablePropertyAccessor.processLocalProperty(AbstractNestablePropertyAccessor.java:435)
at
org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:290)
at
org.springframework.beans.AbstractNestablePropertyAccessor.setPropertyValue(AbstractNestablePropertyAccessor.java:278)
at
org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:95)
at
org.springframework.beans.AbstractPropertyAccessor.setPropertyValues(AbstractPropertyAccessor.java:75)
at
org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.applyPropertyValues(AbstractAutowireCapableBeanFactory.java:1566)
```
[ Full content available at:
https://github.com/apache/incubator-dubbo/issues/2339 ]
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