private void maybeForceBuilderInitialization() {
                    if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
                        getMetaFieldBuilder();
                    }
                }
Protobuf type {@code jraft.LocalSnapshotPbMeta.File}
jraft-core/src/main/java/com/alipay/sofa/jraft/entity/LocalStorageOutter.java