impl1=org.apache.dubbo.common.extension.ext6_wrap.impl.Ext5Impl1
impl2=org.apache.dubbo.common.extension.ext6_wrap.impl.Ext5Impl2
wrapper1=org.apache.dubbo.common.extension.ext6_wrap.impl.Ext5Wrapper1
wrapper2=org.apache.dubbo.common.extension.ext6_wrap.impl.Ext5Wrapper2