[HUDI-379] Refactor the codes based on new JavadocStyle code style rule (#1079)

hudi-utilities/src/test/java/org/apache/hudi/utilities/TestHoodieDeltaStreamer.java

@@ -560,12 +560,12 @@ public class TestHoodieDeltaStreamer extends UtilitiesTestBase {
   }
 
   /**
-   * UDF to calculate Haversine distance
+   * UDF to calculate Haversine distance.
    */
   public static class DistanceUDF implements UDF4<Double, Double, Double, Double, Double> {
 
     /**
-     * Returns some random number as distance between the points
+     * Returns some random number as distance between the points.
      * 
      * @param lat1 Latitiude of source
      * @param lat2 Latitude of destination
@@ -580,7 +580,7 @@ public class TestHoodieDeltaStreamer extends UtilitiesTestBase {
   }
 
   /**
-   * Adds a new field "haversine_distance" to the row
+   * Adds a new field "haversine_distance" to the row.
    */
   public static class TripsWithDistanceTransformer implements Transformer {
 
@@ -601,7 +601,7 @@ public class TestHoodieDeltaStreamer extends UtilitiesTestBase {
   }
 
   /**
-   * Return empty dataset
+   * Return empty dataset.
    */
   public static class DropAllTransformer implements Transformer {
 

hudi-utilities/src/test/java/org/apache/hudi/utilities/UtilitiesTestBase.java

@@ -119,7 +119,7 @@ public class UtilitiesTestBase {
   }
 
   /**
-   * Helper to get hive sync config
+   * Helper to get hive sync config.
    * 
    * @param basePath
    * @param tableName
@@ -140,7 +140,7 @@ public class UtilitiesTestBase {
   }
 
   /**
-   * Initialize Hive DB
+   * Initialize Hive DB.
    * 
    * @throws IOException
    */

hudi-utilities/src/test/java/org/apache/hudi/utilities/sources/TestDFSSource.java

@@ -48,7 +48,7 @@ import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 
 /**
- * Basic tests against all subclasses of {@link JsonDFSSource} and {@link ParquetDFSSource}
+ * Basic tests against all subclasses of {@link JsonDFSSource} and {@link ParquetDFSSource}.
  */
 public class TestDFSSource extends UtilitiesTestBase {
 

hudi-utilities/src/test/java/org/apache/hudi/utilities/sources/TestKafkaSource.java

@@ -48,7 +48,7 @@ import java.util.HashMap;
 import static org.junit.Assert.assertEquals;
 
 /**
- * Tests against {@link AvroKafkaSource}
+ * Tests against {@link AvroKafkaSource}.
  */
 public class TestKafkaSource extends UtilitiesTestBase {
 

hudi-utilities/src/test/java/org/apache/hudi/utilities/sources/config/TestSourceConfig.java

@@ -19,7 +19,7 @@
 package org.apache.hudi.utilities.sources.config;
 
 /**
- * Configurations for Test Data Sources
+ * Configurations for Test Data Sources.
  */
 public class TestSourceConfig {