src/main/java/com/alipay/remoting/RemotingContext.java
public UserProcessor<?> getUserProcessor(String className) {
        return StringUtils.isBlank(className) ? null : this.userProcessors.get(className);
    }
public UserProcessor<?> getUserProcessor(String className) {
        return StringUtils.isBlank(className) ? null : this.userProcessors.get(className);
    }
Get user processor for class name.

@param className
@return