![image](https://user-images.githubusercontent.com/18097545/78014651-d54cb580-737a-11ea-809c-fe5dc884ec55.png)

dubbo 2.7.3， 同时暴露rest和dubbo，com.alibaba.dubbo.samples.echo.api.EchoService这个接口是dubbo协议的，还是当做rest来暴露？

public static final char JVM_VOID = 'V';
    /**
     * boolean(Z).
     */
    public static final char JVM_BOOLEAN = 'Z';
    /**
     * byte(B).
     */
    public static final char JVM_BYTE = 'B';
    /**
     * char(C).
     */
    public static final char JVM_CHAR = 'C';
    /**
     * double(D).
     */
    public static final char JVM_DOUBLE = 'D';
    /**
     * float(F).
     */
    public static final char JVM_FLOAT = 'F';
    /**
     * int(I).
     */
    public static final char JVM_INT = 'I';
    /**
     * long(J).
     */
    public static final char JVM_LONG = 'J';
    /**