public Builder setMeta(com.alipay.sofa.jraft.entity.LocalFileMetaOutter.LocalFileMeta value) {
                    if (metaBuilder_ == null) {
                        if (value == null) {
                            throw new NullPointerException();
                        }
                        meta_ = value;
                        onChanged();
                    } else {
                        metaBuilder_.setMessage(value);
                    }
                    bitField0_ |= 0x00000002;
                    return this;
                }
<code>optional .jraft.LocalFileMeta meta = 2;</code>
jraft-core/src/main/java/com/alipay/sofa/jraft/entity/LocalStorageOutter.java