Github user vasia commented on a diff in the pull request:
https://github.com/apache/flink/pull/1956#discussion_r62837591
--- Diff:
flink-libraries/flink-gelly-examples/src/main/java/org/apache/flink/graph/examples/data/HITSData.java
---
@@ -0,0 +1,72 @@
+/*
+ * 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
+ *
+ * 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.
+ */
+
+package org.apache.flink.graph.examples.data;
+
+import org.apache.flink.api.java.DataSet;
+import org.apache.flink.api.java.ExecutionEnvironment;
+import org.apache.flink.graph.Edge;
+import org.apache.flink.graph.Vertex;
+import org.apache.flink.types.NullValue;
+
+import java.util.ArrayList;
+import java.util.List;
+
+/**
+ * Provides the default data set used for the HITS test program.
+ * If no parameters are given to the program, the default edge data set is
used.
--- End diff --
I guess you copied this comment from another similar class. The "If no
parameters given..." refers to Gelly examples, which run with default data if
no parameters are provided. In this case HITS is implemented as a library
method, so this comment can be removed. This data is only used for testing as
far as I can tell :)
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