public Builder setName(
          String value) {
        if (value == null) {
    throw new NullPointerException();
  }
  bitField0_ |= 0x00000001;
        name_ = value;
        onChanged();
        return this;
      }
<code>optional string name = 1;</code>
@param value The name to set.
@return This builder for chaining.
core/src/test/java/com/alibaba/fastjson2/protobuf/PersonOuterClass.java