chore：remove copyright in license header (#2090)

Co-authored-by: imbajin <jin@apache.org>
2023-01-13 23:26:52 +08:00 · 2023-01-13 23:26:52 +08:00 · b385c45c35
parent c37556919b
commit b385c45c35
744 changed files with 790 additions and 1948 deletions
--- a/hugegraph-api/pom.xml
+++ b/hugegraph-api/pom.xml
@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
  Licensed to the Apache Software Foundation (ASF) under one or more
-  contributor license agreements.  See the NOTICE file distributed with
-  this work for additional information regarding copyright ownership.
-  The ASF licenses this file to You under the Apache License, Version 2.0
-  (the "License"); you may not use this file except in compliance with
-  the License.  You may obtain a copy of the License at
+  contributor license agreements. See the NOTICE file distributed with this
+  work for additional information regarding copyright ownership. The ASF
+  licenses this file to You under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
+  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+  License for the specific language governing permissions and limitations
+  under the License.
  -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/API.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/API.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/AccessAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/AccessAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/BelongAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/BelongAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/GroupAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/GroupAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/LoginAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/LoginAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/ProjectAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/ProjectAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/TargetAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/TargetAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/UserAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/auth/UserAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/AuthenticationFilter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/AuthenticationFilter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/CompressInterceptor.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/CompressInterceptor.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/DecompressInterceptor.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/DecompressInterceptor.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/ExceptionFilter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/ExceptionFilter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/LoadDetectFilter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/LoadDetectFilter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/LoadReleaseFilter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/LoadReleaseFilter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/StatusFilter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/filter/StatusFilter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/BatchAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/BatchAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/EdgeAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/EdgeAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/graph/VertexAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/CypherAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/CypherAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinClient.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinClient.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinQueryAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/gremlin/GremlinQueryAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/AlgorithmAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/AlgorithmAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/ComputerAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/ComputerAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/GremlinAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/GremlinAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/RebuildAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/RebuildAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/TaskAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/job/TaskAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/metrics/MetricsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/metrics/MetricsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/GraphsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/GraphsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/ProfileAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/ProfileAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/VersionAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/profile/VersionAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/raft/RaftAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/raft/RaftAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/EdgeLabelAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/EdgeLabelAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/IndexLabelAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/IndexLabelAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/PropertyKeyAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/PropertyKeyAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/SchemaAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/SchemaAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/VertexLabelAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/schema/VertexLabelAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/AdamicAdarAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/AdamicAdarAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/AllShortestPathsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/AllShortestPathsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CountAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CountAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CrosspointsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CrosspointsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CustomizedCrosspointsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CustomizedCrosspointsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CustomizedPathsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/CustomizedPathsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/EdgesAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/EdgesAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/FusiformSimilarityAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/FusiformSimilarityAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/JaccardSimilarityAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/JaccardSimilarityAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/KneighborAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/KneighborAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/KoutAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/KoutAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/MultiNodeShortestPathAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/MultiNodeShortestPathAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/NeighborRankAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/NeighborRankAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/PathsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/PathsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/PersonalRankAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/PersonalRankAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/RaysAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/RaysAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/ResourceAllocationAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/ResourceAllocationAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/RingsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/RingsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/SameNeighborsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/SameNeighborsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/ShortestPathAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/ShortestPathAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/SingleSourceShortestPathAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/SingleSourceShortestPathAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/TemplatePathsAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/TemplatePathsAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/TraverserAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/TraverserAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/Vertices.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/Vertices.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/VerticesAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/VerticesAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/WeightedShortestPathAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/traversers/WeightedShortestPathAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/api/variables/VariablesAPI.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/api/variables/VariablesAPI.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/ConfigAuthenticator.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/ConfigAuthenticator.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/ContextGremlinServer.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/ContextGremlinServer.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeAuthenticator.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeAuthenticator.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeFactoryAuthProxy.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeFactoryAuthProxy.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeGraphAuthProxy.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/HugeGraphAuthProxy.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/StandardAuthenticator.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/StandardAuthenticator.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/auth/WsAndHttpBasicAuthHandler.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/auth/WsAndHttpBasicAuthHandler.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/config/ServerOptions.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/config/ServerOptions.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/core/GraphManager.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/core/GraphManager.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/define/Checkable.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/define/Checkable.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/define/UpdateStrategy.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/define/UpdateStrategy.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/define/WorkLoad.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/define/WorkLoad.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/license/LicenseVerifier.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/license/LicenseVerifier.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/license/LicenseVerifyManager.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/license/LicenseVerifyManager.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/MetricsModule.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/MetricsModule.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/MetricsUtil.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/MetricsUtil.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/ServerReporter.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/ServerReporter.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/SystemMetrics.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/metrics/SystemMetrics.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/rpc/RpcClientProviderWithAuth.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/rpc/RpcClientProviderWithAuth.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/serializer/JsonSerializer.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/serializer/JsonSerializer.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/serializer/Serializer.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/serializer/Serializer.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/server/ApplicationConfig.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/server/ApplicationConfig.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/server/RestServer.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/server/RestServer.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-api/src/main/java/org/apache/hugegraph/version/ApiVersion.java
+++ b/hugegraph-api/src/main/java/org/apache/hugegraph/version/ApiVersion.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/pom.xml
+++ b/hugegraph-cassandra/pom.xml
@ -1,19 +1,19 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!--
  Licensed to the Apache Software Foundation (ASF) under one or more
-  contributor license agreements.  See the NOTICE file distributed with
-  this work for additional information regarding copyright ownership.
-  The ASF licenses this file to You under the Apache License, Version 2.0
-  (the "License"); you may not use this file except in compliance with
-  the License.  You may obtain a copy of the License at
+  contributor license agreements. See the NOTICE file distributed with this
+  work for additional information regarding copyright ownership. The ASF
+  licenses this file to You under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance with the License.
+  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
-  distributed under the License is distributed on an "AS IS" BASIS,
-  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-  See the License for the specific language governing permissions and
-  limitations under the License.
+  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+  License for the specific language governing permissions and limitations
+  under the License.
  -->
 <project xmlns="http://maven.apache.org/POM/4.0.0"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
--- a/hugegraph-cassandra/src/main/java/com/datastax/driver/core/querybuilder/Clauses.java
+++ b/hugegraph-cassandra/src/main/java/com/datastax/driver/core/querybuilder/Clauses.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraBackendEntry.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraBackendEntry.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraEntryIterator.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraEntryIterator.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraFeatures.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraFeatures.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraMetrics.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraMetrics.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraOptions.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraOptions.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraSerializer.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraSerializer.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraSessionPool.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraSessionPool.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraShard.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraShard.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraStore.java
+++ b/hugegraph-cassandra/src/main/java/org/apache/hugegraph/backend/store/cassandra/CassandraStore.java
@ -1,6 +1,4 @@
 /*
- * Copyright 2017 HugeGraph Authors
- *
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with this
 * work for additional information regarding copyright ownership. The ASF
--- a/Show More
+++ b/Show More