metadata-drivers/etcd/src/main/java/org/apache/bookkeeper/metadata/etcd/EtcdUtils.java
stream/common/src/main/java/org/apache/bookkeeper/common/util/Bytes.java

metadata-drivers/etcd/src/main/java/org/apache/bookkeeper/metadata/etcd/EtcdUtils.java
stream/statelib/src/main/java/org/apache/bookkeeper/statelib/impl/Bytes.java

metadata-drivers/etcd/src/main/java/org/apache/bookkeeper/metadata/etcd/EtcdLedgerManager.java
stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java

metadata-drivers/etcd/src/main/java/org/apache/bookkeeper/metadata/etcd/EtcdWatcher.java
stream/storage/impl/src/main/java/org/apache/bookkeeper/stream/storage/impl/cluster/ZkClusterMetadataStore.java