public final boolean isInitialized() {
        byte isInitialized = memoizedIsInitialized;
        if (isInitialized == 1)
            return true;
        if (isInitialized == 0)
            return false;

        memoizedIsInitialized = 1;
        return true;
    }
<code>.com.alipay.sofa.rpc.protobuf.Group group = 2;</code>
example/src/test/java/com/alipay/sofa/rpc/protobuf/EchoRequest.java