http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/classifier/PerceptronUDTFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/classifier/PerceptronUDTFTest.java 
b/core/src/test/java/hivemall/classifier/PerceptronUDTFTest.java
index 6d3dd12..ff60696 100644
--- a/core/src/test/java/hivemall/classifier/PerceptronUDTFTest.java
+++ b/core/src/test/java/hivemall/classifier/PerceptronUDTFTest.java
@@ -41,24 +41,28 @@ public class PerceptronUDTFTest {
     public void testInitialize() throws UDFArgumentException {
         PerceptronUDTF udtf = new PerceptronUDTF();
         ObjectInspector intOI = 
PrimitiveObjectInspectorFactory.javaIntObjectInspector;
-        ListObjectInspector intListOI = 
ObjectInspectorFactory.getStandardListObjectInspector(intOI);
+        ListObjectInspector intListOI =
+                ObjectInspectorFactory.getStandardListObjectInspector(intOI);
 
         /* test for INT_TYPE_NAME feature */
-        StructObjectInspector intListSOI = udtf.initialize(new 
ObjectInspector[] {intListOI, intOI});
+        StructObjectInspector intListSOI =
+                udtf.initialize(new ObjectInspector[] {intListOI, intOI});
         assertEquals("struct<feature:int,weight:float>", 
intListSOI.getTypeName());
 
         /* test for STRING_TYPE_NAME feature */
         ObjectInspector stringOI = 
PrimitiveObjectInspectorFactory.javaStringObjectInspector;
-        ListObjectInspector stringListOI = 
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
-        StructObjectInspector stringListSOI = udtf.initialize(new 
ObjectInspector[] {stringListOI,
-                intOI});
+        ListObjectInspector stringListOI =
+                
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
+        StructObjectInspector stringListSOI =
+                udtf.initialize(new ObjectInspector[] {stringListOI, intOI});
         assertEquals("struct<feature:string,weight:float>", 
stringListSOI.getTypeName());
 
         /* test for BIGINT_TYPE_NAME feature */
         ObjectInspector longOI = 
PrimitiveObjectInspectorFactory.javaLongObjectInspector;
-        ListObjectInspector longListOI = 
ObjectInspectorFactory.getStandardListObjectInspector(longOI);
-        StructObjectInspector longListSOI = udtf.initialize(new 
ObjectInspector[] {longListOI,
-                intOI});
+        ListObjectInspector longListOI =
+                ObjectInspectorFactory.getStandardListObjectInspector(longOI);
+        StructObjectInspector longListSOI =
+                udtf.initialize(new ObjectInspector[] {longListOI, intOI});
         assertEquals("struct<feature:bigint,weight:float>", 
longListSOI.getTypeName());
     }
 
@@ -66,7 +70,8 @@ public class PerceptronUDTFTest {
     public void testUpdate() throws UDFArgumentException {
         PerceptronUDTF udtf = new PerceptronUDTF();
         ObjectInspector stringOI = 
PrimitiveObjectInspectorFactory.javaStringObjectInspector;
-        ListObjectInspector stringListOI = 
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
+        ListObjectInspector stringListOI =
+                
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
         udtf.initialize(new ObjectInspector[] {stringListOI,
                 PrimitiveObjectInspectorFactory.javaIntObjectInspector});
 
@@ -96,7 +101,8 @@ public class PerceptronUDTFTest {
     public void testUpdateStringTypeDisableBias() throws UDFArgumentException {
         PerceptronUDTF udtf = new PerceptronUDTF();
         ObjectInspector stringOI = 
PrimitiveObjectInspectorFactory.javaStringObjectInspector;
-        ListObjectInspector stringListOI = 
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
+        ListObjectInspector stringListOI =
+                
ObjectInspectorFactory.getStandardListObjectInspector(stringOI);
         ObjectInspector param = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector, "");
         udtf.initialize(new ObjectInspector[] {stringListOI,
@@ -126,11 +132,11 @@ public class PerceptronUDTFTest {
 
     @Test
     public void testSerialization() throws HiveException {
-        TestUtils.testGenericUDTFSerialization(
-            PerceptronUDTF.class,
+        TestUtils.testGenericUDTFSerialization(PerceptronUDTF.class,
             new ObjectInspector[] {
-                    
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
-                    PrimitiveObjectInspectorFactory.javaIntObjectInspector}, 
new Object[][] {{
-                    Arrays.asList("1:-2", "2:-1"), 0}});
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                    PrimitiveObjectInspectorFactory.javaIntObjectInspector},
+            new Object[][] {{Arrays.asList("1:-2", "2:-1"), 0}});
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java 
b/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java
index 2582ab4..c1c9b4c 100644
--- a/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java
+++ b/core/src/test/java/hivemall/evaluation/AUCUDAFTest.java
@@ -44,8 +44,10 @@ public class AUCUDAFTest {
         auc = new AUCUDAF();
 
         inputOIs = new ObjectInspector[] {
-                
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.DOUBLE),
-                
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.INT)};
+                
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                    PrimitiveObjectInspector.PrimitiveCategory.DOUBLE),
+                
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                    PrimitiveObjectInspector.PrimitiveCategory.INT)};
 
         evaluator = auc.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
 
@@ -82,20 +84,23 @@ public class AUCUDAFTest {
         fieldNames.add("tpPartialMap");
         fieldOIs.add(tpPartialMapOI);
 
-        MapObjectInspector fpPrevPartialMapOI = 
ObjectInspectorFactory.getStandardMapObjectInspector(
-            PrimitiveObjectInspectorFactory.writableDoubleObjectInspector,
-            PrimitiveObjectInspectorFactory.writableLongObjectInspector);
+        MapObjectInspector fpPrevPartialMapOI =
+                ObjectInspectorFactory.getStandardMapObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector,
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector);
         fieldNames.add("fpPrevPartialMap");
         fieldOIs.add(fpPrevPartialMapOI);
 
-        MapObjectInspector tpPrevPartialMapOI = 
ObjectInspectorFactory.getStandardMapObjectInspector(
-            PrimitiveObjectInspectorFactory.writableDoubleObjectInspector,
-            PrimitiveObjectInspectorFactory.writableLongObjectInspector);
+        MapObjectInspector tpPrevPartialMapOI =
+                ObjectInspectorFactory.getStandardMapObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector,
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector);
         fieldNames.add("tpPrevPartialMap");
         fieldOIs.add(tpPrevPartialMapOI);
 
         partialOI = new ObjectInspector[2];
-        partialOI[0] = 
ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldOIs);
+        partialOI[0] =
+                
ObjectInspectorFactory.getStandardStructObjectInspector(fieldNames, fieldOIs);
 
         agg = (AUCUDAF.ClassificationAUCAggregationBuffer) 
evaluator.getNewAggregationBuffer();
     }
@@ -232,8 +237,8 @@ public class AUCUDAFTest {
 
         // merge bins
         // merge in a different order; e.g., <bin0, bin1>, <bin1, bin0> should 
return same value
-        final int[][] orders = new int[][] { {0, 1, 2}, {0, 2, 1}, {1, 0, 2}, 
{1, 2, 0}, {2, 1, 0},
-                {2, 0, 1}};
+        final int[][] orders =
+                new int[][] {{0, 1, 2}, {0, 2, 1}, {1, 0, 2}, {1, 2, 0}, {2, 
1, 0}, {2, 0, 1}};
         for (int i = 0; i < orders.length; i++) {
             evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL2, partialOI);
             evaluator.reset(agg);
@@ -248,13 +253,13 @@ public class AUCUDAFTest {
 
     @Test
     public void test100() throws Exception {
-        final double[] scores = new double[] {0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 
0.9, 0.9, 0.8, 0.8,
-                0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 
0.7, 0.7, 0.7, 0.7,
-                0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 
0.7, 0.6, 0.6, 0.6,
-                0.6, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 
0.4, 0.4, 0.4, 0.4,
-                0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.3, 0.3, 0.3, 0.3, 0.3, 
0.3, 0.3, 0.3, 0.3,
-                0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 
0.2, 0.2, 0.2, 0.1,
-                0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1};
+        final double[] scores = new double[] {0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 
0.9, 0.9, 0.8, 0.8, 0.8,
+                0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.7, 
0.7, 0.7, 0.7, 0.7, 0.7,
+                0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.6, 
0.6, 0.6, 0.6, 0.5, 0.5,
+                0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.4, 0.4, 0.4, 
0.4, 0.4, 0.4, 0.4, 0.4,
+                0.4, 0.4, 0.4, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 
0.2, 0.2, 0.2, 0.2, 0.2,
+                0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.1, 0.1, 
0.1, 0.1, 0.1, 0.1, 0.1,
+                0.1, 0.1, 0.1, 0.1};
         final int[] labels = new int[] {1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 
1, 1, 1, 1, 0, 0, 0,
                 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 
0, 0, 1, 1, 1, 1, 1,
                 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 
0, 0, 0, 0, 0, 1, 1,
@@ -273,13 +278,13 @@ public class AUCUDAFTest {
 
     @Test
     public void testMerge100() throws Exception {
-        final double[] scores = new double[] {0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 
0.9, 0.9, 0.8, 0.8,
-                0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 
0.7, 0.7, 0.7, 0.7,
-                0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 
0.7, 0.6, 0.6, 0.6,
-                0.6, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 
0.4, 0.4, 0.4, 0.4,
-                0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.4, 0.3, 0.3, 0.3, 0.3, 0.3, 
0.3, 0.3, 0.3, 0.3,
-                0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 
0.2, 0.2, 0.2, 0.1,
-                0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1, 0.1};
+        final double[] scores = new double[] {0.9, 0.9, 0.9, 0.9, 0.9, 0.9, 
0.9, 0.9, 0.8, 0.8, 0.8,
+                0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.8, 0.7, 
0.7, 0.7, 0.7, 0.7, 0.7,
+                0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.7, 0.6, 
0.6, 0.6, 0.6, 0.5, 0.5,
+                0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.4, 0.4, 0.4, 
0.4, 0.4, 0.4, 0.4, 0.4,
+                0.4, 0.4, 0.4, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 
0.2, 0.2, 0.2, 0.2, 0.2,
+                0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.2, 0.1, 0.1, 
0.1, 0.1, 0.1, 0.1, 0.1,
+                0.1, 0.1, 0.1, 0.1};
         final int[] labels = new int[] {1, 1, 1, 1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 
1, 1, 1, 1, 0, 0, 0,
                 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 
0, 0, 1, 1, 1, 1, 1,
                 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 
0, 0, 0, 0, 0, 1, 1,
@@ -317,8 +322,8 @@ public class AUCUDAFTest {
 
         // merge bins
         // merge in a different order; e.g., <bin0, bin1>, <bin1, bin0> should 
return same value
-        final int[][] orders = new int[][] { {0, 1, 2}, {0, 2, 1}, {1, 0, 2}, 
{1, 2, 0}, {2, 1, 0},
-                {2, 0, 1}};
+        final int[][] orders =
+                new int[][] {{0, 1, 2}, {0, 2, 1}, {1, 0, 2}, {1, 2, 0}, {2, 
1, 0}, {2, 0, 1}};
         for (int j = 0; j < orders.length; j++) {
             evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL2, partialOI);
             evaluator.reset(agg);

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/evaluation/BinaryResponsesMeasuresTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/evaluation/BinaryResponsesMeasuresTest.java 
b/core/src/test/java/hivemall/evaluation/BinaryResponsesMeasuresTest.java
index 853dba0..6e93253 100644
--- a/core/src/test/java/hivemall/evaluation/BinaryResponsesMeasuresTest.java
+++ b/core/src/test/java/hivemall/evaluation/BinaryResponsesMeasuresTest.java
@@ -70,7 +70,8 @@ public class BinaryResponsesMeasuresTest {
             0.d);
 
         Assert.assertEquals(0.d,
-            BinaryResponsesMeasures.Recall(Arrays.asList(1, 3, 2), 
Collections.emptyList(), 2), 0.d);
+            BinaryResponsesMeasures.Recall(Arrays.asList(1, 3, 2), 
Collections.emptyList(), 2),
+            0.d);
     }
 
     @Test
@@ -78,8 +79,8 @@ public class BinaryResponsesMeasuresTest {
         List<Integer> rankedList = Arrays.asList(1, 3, 2, 6);
         List<Integer> groundTruth = Arrays.asList(1, 2, 4);
 
-        double actual = BinaryResponsesMeasures.Precision(rankedList, 
groundTruth,
-            rankedList.size());
+        double actual =
+                BinaryResponsesMeasures.Precision(rankedList, groundTruth, 
rankedList.size());
         Assert.assertEquals(0.5d, actual, 0.0001d);
 
         actual = BinaryResponsesMeasures.Precision(rankedList, groundTruth, 2);
@@ -102,8 +103,8 @@ public class BinaryResponsesMeasuresTest {
         List<Integer> rankedList = Arrays.asList(1, 3, 2, 6);
         List<Integer> groundTruth = Arrays.asList(1, 2, 4);
 
-        double actual = BinaryResponsesMeasures.ReciprocalRank(rankedList, 
groundTruth,
-            rankedList.size());
+        double actual =
+                BinaryResponsesMeasures.ReciprocalRank(rankedList, 
groundTruth, rankedList.size());
         Assert.assertEquals(1.0d, actual, 0.0001d);
 
         Collections.reverse(rankedList);

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/evaluation/FMeasureUDAFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/evaluation/FMeasureUDAFTest.java 
b/core/src/test/java/hivemall/evaluation/FMeasureUDAFTest.java
index 3974c3d..4e39fd3 100644
--- a/core/src/test/java/hivemall/evaluation/FMeasureUDAFTest.java
+++ b/core/src/test/java/hivemall/evaluation/FMeasureUDAFTest.java
@@ -44,12 +44,15 @@ public class FMeasureUDAFTest {
     public void setUp() throws Exception {
         fmeasure = new FMeasureUDAF();
         inputOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableLongObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableLongObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector),
                 ObjectInspectorUtils.getConstantObjectInspector(
                     PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
"-beta 1.")};
 
-        evaluator = fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
+        evaluator =
+                fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
 
         agg = (FMeasureUDAF.FMeasureAggregationBuffer) 
evaluator.getNewAggregationBuffer();
     }
@@ -57,13 +60,16 @@ public class FMeasureUDAFTest {
     private void setUpWithArguments(double beta, String average) throws 
Exception {
         fmeasure = new FMeasureUDAF();
         inputOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableLongObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableLongObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableLongObjectInspector),
                 ObjectInspectorUtils.getConstantObjectInspector(
-                    PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
"-beta " + beta
-                            + " -average " + average)};
+                    PrimitiveObjectInspectorFactory.javaStringObjectInspector,
+                    "-beta " + beta + " -average " + average)};
 
-        evaluator = fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
+        evaluator =
+                fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
         agg = (FMeasureUDAF.FMeasureAggregationBuffer) 
evaluator.getNewAggregationBuffer();
     }
 
@@ -74,27 +80,34 @@ public class FMeasureUDAFTest {
 
         String actualClassName = actual.getClass().getName();
         if (actualClassName.equals("java.lang.Integer")) {
-            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.INT);
+            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.INT);
         } else if (actualClassName.equals("java.lang.Boolean")) {
-            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.BOOLEAN);
+            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.BOOLEAN);
         } else if ((actualClassName.equals("java.lang.String"))) {
-            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.STRING);
+            inputOIs[0] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.STRING);
         }
 
         String predicatedClassName = predicted.getClass().getName();
         if (predicatedClassName.equals("java.lang.Integer")) {
-            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.INT);
+            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.INT);
         } else if (predicatedClassName.equals("java.lang.Boolean")) {
-            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.BOOLEAN);
+            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.BOOLEAN);
         } else if ((predicatedClassName.equals("java.lang.String"))) {
-            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(PrimitiveObjectInspector.PrimitiveCategory.STRING);
+            inputOIs[1] = 
PrimitiveObjectInspectorFactory.getPrimitiveJavaObjectInspector(
+                PrimitiveObjectInspector.PrimitiveCategory.STRING);
         }
 
         inputOIs[2] = ObjectInspectorUtils.getConstantObjectInspector(
-            PrimitiveObjectInspectorFactory.javaStringObjectInspector, "-beta 
" + beta
-                    + " -average " + average);
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector,
+            "-beta " + beta + " -average " + average);
 
-        evaluator = fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
+        evaluator =
+                fmeasure.getEvaluator(new 
SimpleGenericUDAFParameterInfo(inputOIs, false, false));
         agg = (FMeasureUDAF.FMeasureAggregationBuffer) 
evaluator.getNewAggregationBuffer();
     }
 
@@ -330,10 +343,10 @@ public class FMeasureUDAFTest {
 
     @Test
     public void testMultiLabelF1MultiSamples() throws Exception {
-        String[][] actual = { {"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", 
"0"}, {"0", "1"},
-                {"1", "2"}};
-        String[][] predicted = { {"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", 
"0"}, {"0", "1", "2"},
-                {"1"}};
+        String[][] actual =
+                {{"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", "0"}, {"0", "1"}, 
{"1", "2"}};
+        String[][] predicted =
+                {{"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", "0"}, {"0", "1", 
"2"}, {"1"}};
 
         double beta = 1.0;
         String average = "micro";
@@ -353,10 +366,10 @@ public class FMeasureUDAFTest {
 
     @Test
     public void testMultiLabelFmeasureMultiSamples() throws Exception {
-        String[][] actual = { {"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", 
"0"}, {"0", "1"},
-                {"1", "2"}};
-        String[][] predicted = { {"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", 
"0"}, {"0", "1", "2"},
-                {"1"}};
+        String[][] actual =
+                {{"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", "0"}, {"0", "1"}, 
{"1", "2"}};
+        String[][] predicted =
+                {{"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", "0"}, {"0", "1", 
"2"}, {"1"}};
 
         double beta = 2.0;
         String average = "micro";
@@ -373,10 +386,10 @@ public class FMeasureUDAFTest {
 
     @Test(expected = HiveException.class)
     public void testMultiLabelFmeasureBinary() throws Exception {
-        String[][] actual = { {"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", 
"0"}, {"0", "1"},
-                {"1", "2"}};
-        String[][] predicted = { {"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", 
"0"}, {"0", "1", "2"},
-                {"1"}};
+        String[][] actual =
+                {{"0", "2"}, {"0", "1"}, {"0"}, {"2"}, {"2", "0"}, {"0", "1"}, 
{"1", "2"}};
+        String[][] predicted =
+                {{"0", "1"}, {"0", "2"}, {}, {"2"}, {"2", "0"}, {"0", "1", 
"2"}, {"1"}};
 
         double beta = 1.0;
         String average = "binary";

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/evaluation/GradedResponsesMeasuresTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/evaluation/GradedResponsesMeasuresTest.java 
b/core/src/test/java/hivemall/evaluation/GradedResponsesMeasuresTest.java
index 96ac030..acba12b 100644
--- a/core/src/test/java/hivemall/evaluation/GradedResponsesMeasuresTest.java
+++ b/core/src/test/java/hivemall/evaluation/GradedResponsesMeasuresTest.java
@@ -31,8 +31,8 @@ public class GradedResponsesMeasuresTest {
         List<Double> recommendTopRelScoreList = Arrays.asList(5.0, 2.0, 4.0, 
1.0, 3.0);
         List<Double> truthTopRelScoreList = Arrays.asList(5.0, 4.0, 3.0);
 
-        double actual = GradedResponsesMeasures.nDCG(recommendTopRelScoreList,
-            truthTopRelScoreList, 3);
+        double actual =
+                GradedResponsesMeasures.nDCG(recommendTopRelScoreList, 
truthTopRelScoreList, 3);
         Assert.assertEquals(0.918770780535d, actual, 0.0001d);
 
         actual = GradedResponsesMeasures.nDCG(recommendTopRelScoreList, 
truthTopRelScoreList, 2);

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/ArrayModelTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/fm/ArrayModelTest.java 
b/core/src/test/java/hivemall/fm/ArrayModelTest.java
index 9264479..9ad48b9 100644
--- a/core/src/test/java/hivemall/fm/ArrayModelTest.java
+++ b/core/src/test/java/hivemall/fm/ArrayModelTest.java
@@ -44,7 +44,8 @@ public class ArrayModelTest {
         final int ROW = 10, COL = 40;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,
@@ -119,7 +120,8 @@ public class ArrayModelTest {
         final int ROW = 1000, COL = 80;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/FactorizationMachineUDTFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/fm/FactorizationMachineUDTFTest.java 
b/core/src/test/java/hivemall/fm/FactorizationMachineUDTFTest.java
index fb2b4a2..64da212 100644
--- a/core/src/test/java/hivemall/fm/FactorizationMachineUDTFTest.java
+++ b/core/src/test/java/hivemall/fm/FactorizationMachineUDTFTest.java
@@ -48,7 +48,8 @@ public class FactorizationMachineUDTFTest {
         println("SGD test");
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
         ObjectInspector[] argOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    PrimitiveObjectInspectorFactory.javaStringObjectInspector),
                 PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                 ObjectInspectorUtils.getConstantObjectInspector(
                     PrimitiveObjectInspectorFactory.javaStringObjectInspector,
@@ -82,7 +83,8 @@ public class FactorizationMachineUDTFTest {
             }
             cumul = udtf._cvState.getCumulativeLoss();
             loss = (cumul - loss) / trExamples;
-            println(trainingIteration + " " + loss + " " + cumul / 
(trainingIteration * trExamples));
+            println(
+                trainingIteration + " " + loss + " " + cumul / 
(trainingIteration * trExamples));
             data.close();
         }
 
@@ -93,7 +95,8 @@ public class FactorizationMachineUDTFTest {
     public void testEnableL2Norm() throws HiveException, IOException {
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
         ObjectInspector[] argOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    PrimitiveObjectInspectorFactory.javaStringObjectInspector),
                 PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                 ObjectInspectorUtils.getConstantObjectInspector(
                     PrimitiveObjectInspectorFactory.javaStringObjectInspector,
@@ -106,10 +109,10 @@ public class FactorizationMachineUDTFTest {
 
     @Test
     public void testSerialization() throws HiveException {
-        TestUtils.testGenericUDTFSerialization(
-            FactorizationMachineUDTF.class,
+        TestUtils.testGenericUDTFSerialization(FactorizationMachineUDTF.class,
             new ObjectInspector[] {
-                    
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                     ObjectInspectorUtils.getConstantObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaStringObjectInspector,

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/FeatureTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/fm/FeatureTest.java 
b/core/src/test/java/hivemall/fm/FeatureTest.java
index 24ef0d8..28ea174 100644
--- a/core/src/test/java/hivemall/fm/FeatureTest.java
+++ b/core/src/test/java/hivemall/fm/FeatureTest.java
@@ -65,7 +65,8 @@ public class FeatureTest {
     public void testParseFFMFeatureProbe() throws HiveException {
         IntFeature probe = 
Feature.parseFFMFeature("dummyField:dummyFeature:-1");
         Assert.assertEquals(MurmurHash3.murmurhash3("dummyFeature", 
Feature.DEFAULT_NUM_FEATURES)
-                + Feature.DEFAULT_NUM_FIELDS, probe.getFeatureIndex());
+                + Feature.DEFAULT_NUM_FIELDS,
+            probe.getFeatureIndex());
         Feature.parseFFMFeature("2:1163:0.3651", probe, -1, 
Feature.DEFAULT_NUM_FIELDS);
         Assert.assertEquals(2, probe.getField());
         Assert.assertEquals(1163, probe.getFeatureIndex());

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/FieldAwareFactorizationMachineUDTFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/fm/FieldAwareFactorizationMachineUDTFTest.java 
b/core/src/test/java/hivemall/fm/FieldAwareFactorizationMachineUDTFTest.java
index 604b355..16196eb 100644
--- a/core/src/test/java/hivemall/fm/FieldAwareFactorizationMachineUDTFTest.java
+++ b/core/src/test/java/hivemall/fm/FieldAwareFactorizationMachineUDTFTest.java
@@ -94,7 +94,8 @@ public class FieldAwareFactorizationMachineUDTFTest {
     public void testSampleEnableNorm() throws IOException, HiveException {
         run("[Sample.ffm] default option",
             "https://github.com/myui/ml_dataset/raw/master/ffm/sample.ffm.gz";,
-            "-classification -factors 2 -iters 10 -feature_hashing 20 -seed 43 
-enable_norm", 0.01f);
+            "-classification -factors 2 -iters 10 -feature_hashing 20 -seed 43 
-enable_norm",
+            0.01f);
     }
 
     private static void run(String testName, String testFile, String 
testOptions,
@@ -102,11 +103,14 @@ public class FieldAwareFactorizationMachineUDTFTest {
         println(testName);
 
         FieldAwareFactorizationMachineUDTF udtf = new 
FieldAwareFactorizationMachineUDTF();
-        ObjectInspector[] argOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                ObjectInspectorUtils.getConstantObjectInspector(
-                    PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
testOptions)};
+        ObjectInspector[] argOIs =
+                new ObjectInspector[] {
+                        ObjectInspectorFactory.getStandardListObjectInspector(
+                            
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                        
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                        ObjectInspectorUtils.getConstantObjectInspector(
+                            
PrimitiveObjectInspectorFactory.javaStringObjectInspector,
+                            testOptions)};
 
         udtf.initialize(argOIs);
         FieldAwareFactorizationMachineModel model = 
udtf.initModel(udtf._params);
@@ -160,11 +164,14 @@ public class FieldAwareFactorizationMachineUDTFTest {
         println(testName);
 
         FieldAwareFactorizationMachineUDTF udtf = new 
FieldAwareFactorizationMachineUDTF();
-        ObjectInspector[] argOIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                ObjectInspectorUtils.getConstantObjectInspector(
-                    PrimitiveObjectInspectorFactory.javaStringObjectInspector, 
testOptions)};
+        ObjectInspector[] argOIs =
+                new ObjectInspector[] {
+                        ObjectInspectorFactory.getStandardListObjectInspector(
+                            
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                        
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                        ObjectInspectorUtils.getConstantObjectInspector(
+                            
PrimitiveObjectInspectorFactory.javaStringObjectInspector,
+                            testOptions)};
 
         udtf.initialize(argOIs);
         FieldAwareFactorizationMachineModel model = 
udtf.initModel(udtf._params);
@@ -216,15 +223,15 @@ public class FieldAwareFactorizationMachineUDTFTest {
 
     @Test
     public void testSerialization() throws HiveException {
-        TestUtils.testGenericUDTFSerialization(
-            FieldAwareFactorizationMachineUDTF.class,
+        
TestUtils.testGenericUDTFSerialization(FieldAwareFactorizationMachineUDTF.class,
             new ObjectInspector[] {
-                    
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                     ObjectInspectorUtils.getConstantObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaStringObjectInspector,
-                        "-opt sgd -classification -factors 10 -w0 -seed 43")}, 
new Object[][] {{
-                    Arrays.asList("0:1:-2", "1:2:-1"), 1.0}});
+                        "-opt sgd -classification -factors 10 -w0 -seed 43")},
+            new Object[][] {{Arrays.asList("0:1:-2", "1:2:-1"), 1.0}});
     }
 
     @Nonnull

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/IntFeatureMapModelTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/fm/IntFeatureMapModelTest.java 
b/core/src/test/java/hivemall/fm/IntFeatureMapModelTest.java
index 890962f..aa50b0d 100644
--- a/core/src/test/java/hivemall/fm/IntFeatureMapModelTest.java
+++ b/core/src/test/java/hivemall/fm/IntFeatureMapModelTest.java
@@ -44,7 +44,8 @@ public class IntFeatureMapModelTest {
         final int ROW = 10, COL = 40;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,
@@ -119,7 +120,8 @@ public class IntFeatureMapModelTest {
         final int ROW = 1000, COL = 80;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/fm/StringFeatureMapModelTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/fm/StringFeatureMapModelTest.java 
b/core/src/test/java/hivemall/fm/StringFeatureMapModelTest.java
index 40fb66e..7e00e9e 100644
--- a/core/src/test/java/hivemall/fm/StringFeatureMapModelTest.java
+++ b/core/src/test/java/hivemall/fm/StringFeatureMapModelTest.java
@@ -44,7 +44,8 @@ public class StringFeatureMapModelTest {
         final int ROW = 10, COL = 40;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,
@@ -119,7 +120,8 @@ public class StringFeatureMapModelTest {
         final int ROW = 1000, COL = 80;
 
         FactorizationMachineUDTF udtf = new FactorizationMachineUDTF();
-        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector);
+        ListObjectInspector xOI = 
ObjectInspectorFactory.getStandardListObjectInspector(
+            PrimitiveObjectInspectorFactory.javaStringObjectInspector);
         DoubleObjectInspector yOI = 
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector;
         ObjectInspector paramOI = 
ObjectInspectorUtils.getConstantObjectInspector(
             PrimitiveObjectInspectorFactory.javaStringObjectInspector,

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/FeatureUDFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/ftvec/FeatureUDFTest.java 
b/core/src/test/java/hivemall/ftvec/FeatureUDFTest.java
index 17a937e..c4e1fa0 100644
--- a/core/src/test/java/hivemall/ftvec/FeatureUDFTest.java
+++ b/core/src/test/java/hivemall/ftvec/FeatureUDFTest.java
@@ -47,8 +47,8 @@ public class FeatureUDFTest {
         ObjectInspector weightOI = 
PrimitiveObjectInspectorFactory.javaIntObjectInspector;
         udf.initialize(new ObjectInspector[] {featureOI, weightOI});
 
-        Text ret = udf.evaluate(new GenericUDF.DeferredObject[] {new 
DeferredJavaObject(1),
-                new DeferredJavaObject(2)});
+        Text ret = udf.evaluate(
+            new GenericUDF.DeferredObject[] {new DeferredJavaObject(1), new 
DeferredJavaObject(2)});
 
         Assert.assertEquals("1:2", ret.toString());
     }
@@ -203,9 +203,9 @@ public class FeatureUDFTest {
         ObjectInspector weightOI = 
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector;
         udf.initialize(new ObjectInspector[] {featureOI, weightOI});
 
-        Text ret = udf.evaluate(new GenericUDF.DeferredObject[] {
-                new DeferredJavaObject(new Text("f1")),
-                new DeferredJavaObject(new DoubleWritable(2.5d))});
+        Text ret = udf.evaluate(
+            new GenericUDF.DeferredObject[] {new DeferredJavaObject(new 
Text("f1")),
+                    new DeferredJavaObject(new DoubleWritable(2.5d))});
 
         Assert.assertEquals("f1:2.5", ret.toString());
     }
@@ -232,10 +232,10 @@ public class FeatureUDFTest {
 
     @Test
     public void testSerialization() throws HiveException, IOException {
-        TestUtils.testGenericUDFSerialization(FeatureUDF.class, new 
ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaStringObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector}, 
new Object[] {"f1",
-                2.5d});
+        TestUtils.testGenericUDFSerialization(FeatureUDF.class,
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaStringObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector},
+            new Object[] {"f1", 2.5d});
     }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/hashing/FeatureHashingUDFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/ftvec/hashing/FeatureHashingUDFTest.java 
b/core/src/test/java/hivemall/ftvec/hashing/FeatureHashingUDFTest.java
index 82b5cde..d91eb66 100644
--- a/core/src/test/java/hivemall/ftvec/hashing/FeatureHashingUDFTest.java
+++ b/core/src/test/java/hivemall/ftvec/hashing/FeatureHashingUDFTest.java
@@ -37,7 +37,8 @@ public class FeatureHashingUDFTest {
     @Test
     public void testBias() {
         String expected = "0:1.0";
-        String actual = FeatureHashingUDF.featureHashing(expected, 
MurmurHash3.DEFAULT_NUM_FEATURES);
+        String actual =
+                FeatureHashingUDF.featureHashing(expected, 
MurmurHash3.DEFAULT_NUM_FEATURES);
         Assert.assertEquals(expected, actual);
 
         expected = "0";
@@ -46,16 +47,16 @@ public class FeatureHashingUDFTest {
 
         expected = "0:1.1";
         actual = FeatureHashingUDF.featureHashing(expected, 
MurmurHash3.DEFAULT_NUM_FEATURES);
-        Assert.assertEquals(
-            FeatureHashingUDF.mhash("0", MurmurHash3.DEFAULT_NUM_FEATURES) + 
":1.1", actual);
+        Assert.assertEquals(FeatureHashingUDF.mhash("0", 
MurmurHash3.DEFAULT_NUM_FEATURES) + ":1.1",
+            actual);
     }
 
     @Test
     public void testSerialization() throws HiveException, IOException {
-        TestUtils.testGenericUDFSerialization(
-            FeatureHashingUDF.class,
+        TestUtils.testGenericUDFSerialization(FeatureHashingUDF.class,
             new ObjectInspector[] {
-                    
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.javaStringObjectInspector),
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaStringObjectInspector),
                     ObjectInspectorUtils.getConstantObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaStringObjectInspector, "-features 1")},
             new Object[] {Arrays.asList("aaa#xxx", "bbb:10")});

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/pairing/PolynomialFeaturesUDFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/ftvec/pairing/PolynomialFeaturesUDFTest.java 
b/core/src/test/java/hivemall/ftvec/pairing/PolynomialFeaturesUDFTest.java
index daf4e30..d9dd579 100644
--- a/core/src/test/java/hivemall/ftvec/pairing/PolynomialFeaturesUDFTest.java
+++ b/core/src/test/java/hivemall/ftvec/pairing/PolynomialFeaturesUDFTest.java
@@ -41,8 +41,8 @@ public class PolynomialFeaturesUDFTest {
         List<Text> args = WritableUtils.val("a:0.5", "b:0.3");
         PolynomialFeaturesUDF udf = new PolynomialFeaturesUDF();
         List<Text> actuals = udf.evaluate(args, 2);
-        List<Text> expected = WritableUtils.val("a:0.5", "a^a:0.25", 
"a^b:0.15", "b:0.3",
-            "b^b:0.09");
+        List<Text> expected =
+                WritableUtils.val("a:0.5", "a^a:0.25", "a^b:0.15", "b:0.3", 
"b^b:0.09");
         Assert.assertEquals(expected, actuals);
 
         actuals = udf.evaluate(args, 3);
@@ -69,10 +69,10 @@ public class PolynomialFeaturesUDFTest {
         Assert.assertEquals(expected, actuals);
 
         actuals = udf.evaluate(args, 3, false, false);
-        expected = WritableUtils.val("a:0.5", "a^a:0.25", "a^a^a:0.125", 
"a^a^b:0.25",
-            "a^a^c:0.05", "a^b:0.5", "a^b^b:0.5", "a^b^c:0.1", "a^c:0.1", 
"a^c^c:0.020000001",
-            "b:1.0", "b^b:1.0", "b^b^b:1.0", "b^b^c:0.2", "b^c:0.2", 
"b^c^c:0.040000003", "c:0.2",
-            "c^c:0.040000003", "c^c^c:0.008");
+        expected = WritableUtils.val("a:0.5", "a^a:0.25", "a^a^a:0.125", 
"a^a^b:0.25", "a^a^c:0.05",
+            "a^b:0.5", "a^b^b:0.5", "a^b^c:0.1", "a^c:0.1", 
"a^c^c:0.020000001", "b:1.0", "b^b:1.0",
+            "b^b^b:1.0", "b^b^c:0.2", "b^c:0.2", "b^c^c:0.040000003", "c:0.2", 
"c^c:0.040000003",
+            "c^c^c:0.008");
         Assert.assertEquals(expected, actuals);
     }
 
@@ -81,8 +81,8 @@ public class PolynomialFeaturesUDFTest {
         List<Text> args = WritableUtils.val("a:0.5", "b:0.3", "c:0.2");
         PolynomialFeaturesUDF udf = new PolynomialFeaturesUDF();
         List<Text> actuals = udf.evaluate(args, 3, true, true);
-        List<Text> expected = WritableUtils.val("a:0.5", "a^b:0.15", 
"a^b^c:0.030000001",
-            "a^c:0.1", "b:0.3", "b^c:0.060000002", "c:0.2");
+        List<Text> expected = WritableUtils.val("a:0.5", "a^b:0.15", 
"a^b^c:0.030000001", "a^c:0.1",
+            "b:0.3", "b^c:0.060000002", "c:0.2");
         Assert.assertEquals(expected, actuals);
     }
 

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/selection/ChiSquareUDFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/ftvec/selection/ChiSquareUDFTest.java 
b/core/src/test/java/hivemall/ftvec/selection/ChiSquareUDFTest.java
index fd742bb..c51b5c2 100644
--- a/core/src/test/java/hivemall/ftvec/selection/ChiSquareUDFTest.java
+++ b/core/src/test/java/hivemall/ftvec/selection/ChiSquareUDFTest.java
@@ -38,14 +38,14 @@ public class ChiSquareUDFTest {
         final ChiSquareUDF chi2 = new ChiSquareUDF();
         final List<List<DoubleWritable>> observed = new 
ArrayList<List<DoubleWritable>>();
         final List<List<DoubleWritable>> expected = new 
ArrayList<List<DoubleWritable>>();
-        final GenericUDF.DeferredObject[] dObjs = new 
GenericUDF.DeferredObject[] {
-                new GenericUDF.DeferredJavaObject(observed),
-                new GenericUDF.DeferredJavaObject(expected)};
+        final GenericUDF.DeferredObject[] dObjs =
+                new GenericUDF.DeferredObject[] {new 
GenericUDF.DeferredJavaObject(observed),
+                        new GenericUDF.DeferredJavaObject(expected)};
 
-        final double[][] matrix0 = new double[][] {
-                {250.29999999999998, 170.90000000000003, 73.2, 
12.199999999999996},
-                {296.8, 138.50000000000003, 212.99999999999997, 66.3},
-                {329.3999999999999, 148.7, 277.59999999999997, 
101.29999999999998}};
+        final double[][] matrix0 =
+                new double[][] {{250.29999999999998, 170.90000000000003, 73.2, 
12.199999999999996},
+                        {296.8, 138.50000000000003, 212.99999999999997, 66.3},
+                        {329.3999999999999, 148.7, 277.59999999999997, 
101.29999999999998}};
         final double[][] matrix1 = new double[][] {
                 {292.1666753739119, 152.70000455081467, 187.93333893418327, 
59.93333511948589},
                 {292.1666753739119, 152.70000455081467, 187.93333893418327, 
59.93333511948589},
@@ -59,8 +59,12 @@ public class ChiSquareUDFTest {
         }
 
         chi2.initialize(new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector)),
-                
ObjectInspectorFactory.getStandardListObjectInspector(ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector))});
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector)),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    ObjectInspectorFactory.getStandardListObjectInspector(
+                        
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector))});
         final List<DoubleWritable>[] result = chi2.evaluate(dObjs);
         final double[] result0 = new double[matrix0[0].length];
         final double[] result1 = new double[matrix0[0].length];
@@ -71,8 +75,8 @@ public class ChiSquareUDFTest {
 
         // compare results to one of scikit-learn
         final double[] answer0 = new double[] {10.81782088, 3.59449902, 
116.16984746, 67.24482759};
-        final double[] answer1 = new double[] {4.47651499e-03, 1.65754167e-01, 
5.94344354e-26,
-                2.50017968e-15};
+        final double[] answer1 =
+                new double[] {4.47651499e-03, 1.65754167e-01, 5.94344354e-26, 
2.50017968e-15};
 
         Assert.assertArrayEquals(answer0, result0, 1e-5);
         Assert.assertArrayEquals(answer1, result1, 1e-5);

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/selection/SignalNoiseRatioUDAFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/ftvec/selection/SignalNoiseRatioUDAFTest.java 
b/core/src/test/java/hivemall/ftvec/selection/SignalNoiseRatioUDAFTest.java
index 79570e3..913a77e 100644
--- a/core/src/test/java/hivemall/ftvec/selection/SignalNoiseRatioUDAFTest.java
+++ b/core/src/test/java/hivemall/ftvec/selection/SignalNoiseRatioUDAFTest.java
@@ -41,27 +41,31 @@ public class SignalNoiseRatioUDAFTest {
         // this test is based on *subset* of iris data set
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] features = new double[][] { {5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
-                {4.7, 3.2, 1.3, 0.2}, {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 
1.5},
-                {6.9, 3.1, 4.9, 1.5}};
+        final double[][] features =
+                new double[][] {{5.1, 3.5, 1.4, 0.2}, {4.9, 3.d, 1.4, 0.2}, 
{4.7, 3.2, 1.3, 0.2},
+                        {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 1.5}, {6.9, 3.1, 
4.9, 1.5}};
 
-        final int[][] labels = new int[][] { {1, 0}, {1, 0}, {1, 0}, {0, 1}, 
{0, 1}, {0, 1}};
+        final int[][] labels = new int[][] {{1, 0}, {1, 0}, {1, 0}, {0, 1}, 
{0, 1}, {0, 1}};
 
         for (int i = 0; i < features.length; i++) {
             final List<IntWritable> labelList = new ArrayList<IntWritable>();
             for (int label : labels[i]) {
                 labelList.add(new IntWritable(label));
             }
-            evaluator.iterate(agg, new Object[] 
{WritableUtils.toWritableList(features[i]),
-                    labelList});
+            evaluator.iterate(agg,
+                new Object[] {WritableUtils.toWritableList(features[i]), 
labelList});
         }
 
         @SuppressWarnings("unchecked")
@@ -83,28 +87,32 @@ public class SignalNoiseRatioUDAFTest {
         // this test is based on *subset* of iris data set
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] features = new double[][] { {5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
-                {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 
2.5},
-                {5.8, 2.7, 5.1, 1.9}};
+        final double[][] features =
+                new double[][] {{5.1, 3.5, 1.4, 0.2}, {4.9, 3.d, 1.4, 0.2}, 
{7.d, 3.2, 4.7, 1.4},
+                        {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 2.5}, {5.8, 2.7, 
5.1, 1.9}};
 
-        final int[][] labels = new int[][] { {1, 0, 0}, {1, 0, 0}, {0, 1, 0}, 
{0, 1, 0}, {0, 0, 1},
-                {0, 0, 1}};
+        final int[][] labels =
+                new int[][] {{1, 0, 0}, {1, 0, 0}, {0, 1, 0}, {0, 1, 0}, {0, 
0, 1}, {0, 0, 1}};
 
         for (int i = 0; i < features.length; i++) {
             final List<IntWritable> labelList = new ArrayList<IntWritable>();
             for (int label : labels[i]) {
                 labelList.add(new IntWritable(label));
             }
-            evaluator.iterate(agg, new Object[] 
{WritableUtils.toWritableList(features[i]),
-                    labelList});
+            evaluator.iterate(agg,
+                new Object[] {WritableUtils.toWritableList(features[i]), 
labelList});
         }
 
         @SuppressWarnings("unchecked")
@@ -125,22 +133,26 @@ public class SignalNoiseRatioUDAFTest {
     public void snrMultipleClassCornerCase0() throws Exception {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
         // all c0[0] and c1[0] are equal
         // all c1[1] and c2[1] are equal
         // all c*[2] are equal
         // all c*[3] are different
-        final double[][] features = new double[][] { {3.5, 1.4, 0.3, 5.1}, 
{3.5, 1.5, 0.3, 5.2},
+        final double[][] features = new double[][] {{3.5, 1.4, 0.3, 5.1}, 
{3.5, 1.5, 0.3, 5.2},
                 {3.5, 4.5, 0.3, 7.d}, {3.5, 4.5, 0.3, 6.4}, {3.3, 4.5, 0.3, 
6.3}};
 
-        final int[][] labels = new int[][] { {1, 0, 0}, {1, 0, 0}, // class `0`
+        final int[][] labels = new int[][] {{1, 0, 0}, {1, 0, 0}, // class `0`
                 {0, 1, 0}, {0, 1, 0}, // class `1`
                 {0, 0, 1}}; // class `2`, only single entry
 
@@ -149,8 +161,8 @@ public class SignalNoiseRatioUDAFTest {
             for (int label : labels[i]) {
                 labelList.add(new IntWritable(label));
             }
-            evaluator.iterate(agg, new Object[] 
{WritableUtils.toWritableList(features[i]),
-                    labelList});
+            evaluator.iterate(agg,
+                new Object[] {WritableUtils.toWritableList(features[i]), 
labelList});
         }
 
         @SuppressWarnings("unchecked")
@@ -171,19 +183,23 @@ public class SignalNoiseRatioUDAFTest {
     public void snrMultipleClassCornerCase1() throws Exception {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] features = new double[][] { {5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
+        final double[][] features = new double[][] {{5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
                 {7.d, 3.2, 4.7, 1.4}, {6.3, 3.3, 6.d, 2.5}, {6.4, 3.2, 4.5, 
1.5}};
 
         // has multiple single entries
-        final int[][] labels = new int[][] { {1, 0, 0}, {1, 0, 0}, {1, 0, 0}, 
// class `0`
+        final int[][] labels = new int[][] {{1, 0, 0}, {1, 0, 0}, {1, 0, 0}, 
// class `0`
                 {0, 1, 0}, // class `1`, only single entry
                 {0, 0, 1}}; // class `2`, only single entry
 
@@ -192,8 +208,8 @@ public class SignalNoiseRatioUDAFTest {
             for (int label : labels[i]) {
                 labelList.add(new IntWritable(label));
             }
-            evaluator.iterate(agg, new Object[] 
{WritableUtils.toWritableList(features[i]),
-                    labelList});
+            evaluator.iterate(agg,
+                new Object[] {WritableUtils.toWritableList(features[i]), 
labelList});
         }
 
         @SuppressWarnings("unchecked")
@@ -210,30 +226,34 @@ public class SignalNoiseRatioUDAFTest {
     public void snrMultipleClassCornerCase2() throws Exception {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
         // all [0] are equal
         // all [1] are equal *each class*
-        final double[][] features = new double[][] { {1.d, 1.d, 1.4, 0.2}, 
{1.d, 1.d, 1.4, 0.2},
-                {1.d, 2.d, 4.7, 1.4}, {1.d, 2.d, 4.5, 1.5}, {1.d, 3.d, 6.d, 
2.5},
-                {1.d, 3.d, 5.1, 1.9}};
+        final double[][] features =
+                new double[][] {{1.d, 1.d, 1.4, 0.2}, {1.d, 1.d, 1.4, 0.2}, 
{1.d, 2.d, 4.7, 1.4},
+                        {1.d, 2.d, 4.5, 1.5}, {1.d, 3.d, 6.d, 2.5}, {1.d, 3.d, 
5.1, 1.9}};
 
-        final int[][] labels = new int[][] { {1, 0, 0}, {1, 0, 0}, {0, 1, 0}, 
{0, 1, 0}, {0, 0, 1},
-                {0, 0, 1}};
+        final int[][] labels =
+                new int[][] {{1, 0, 0}, {1, 0, 0}, {0, 1, 0}, {0, 1, 0}, {0, 
0, 1}, {0, 0, 1}};
 
         for (int i = 0; i < features.length; i++) {
             final List<IntWritable> labelList = new ArrayList<IntWritable>();
             for (int label : labels[i]) {
                 labelList.add(new IntWritable(label));
             }
-            evaluator.iterate(agg, new Object[] 
{WritableUtils.toWritableList(features[i]),
-                    labelList});
+            evaluator.iterate(agg,
+                new Object[] {WritableUtils.toWritableList(features[i]), 
labelList});
         }
 
         @SuppressWarnings("unchecked")
@@ -244,8 +264,8 @@ public class SignalNoiseRatioUDAFTest {
             result[i] = resultObj.get(i).get();
         }
 
-        final double[] answer = new double[] {0.d, Double.POSITIVE_INFINITY, 
42.94949495,
-                33.80952381};
+        final double[] answer =
+                new double[] {0.d, Double.POSITIVE_INFINITY, 42.94949495, 
33.80952381};
 
         Assert.assertArrayEquals(answer, result, 1e-5);
     }
@@ -255,19 +275,23 @@ public class SignalNoiseRatioUDAFTest {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
 
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] featuress = new double[][] { {5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
-                {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 
2.5},
-                {5.8, 2.7, 5.1, 1.9}};
+        final double[][] featuress =
+                new double[][] {{5.1, 3.5, 1.4, 0.2}, {4.9, 3.d, 1.4, 0.2}, 
{7.d, 3.2, 4.7, 1.4},
+                        {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 2.5}, {5.8, 2.7, 
5.1, 1.9}};
 
-        final int[][] labelss = new int[][] { {0, 0, 0}, // cause 
UDFArgumentException
+        final int[][] labelss = new int[][] {{0, 0, 0}, // cause 
UDFArgumentException
                 {1, 0, 0}, {0, 1, 0}, {0, 1, 0}, {0, 0, 1}, {0, 0, 1}};
 
         for (int i = 0; i < featuress.length; i++) {
@@ -285,21 +309,24 @@ public class SignalNoiseRatioUDAFTest {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
 
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] featuress = new double[][] { {5.1, 3.5, 1.4, 0.2},
-                {4.9, 3.d, 1.4}, // cause IllegalArgumentException
+        final double[][] featuress = new double[][] {{5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4}, // cause IllegalArgumentException
                 {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 
2.5},
                 {5.8, 2.7, 5.1, 1.9}};
 
-        final int[][] labelss = new int[][] { {1, 0, 0}, {1, 0, 0}, {0, 1, 0}, 
{0, 1, 0},
-                {0, 0, 1}, {0, 0, 1}};
+        final int[][] labelss =
+                new int[][] {{1, 0, 0}, {1, 0, 0}, {0, 1, 0}, {0, 1, 0}, {0, 
0, 1}, {0, 0, 1}};
 
         for (int i = 0; i < featuress.length; i++) {
             final List<IntWritable> labels = new ArrayList<IntWritable>();
@@ -316,19 +343,23 @@ public class SignalNoiseRatioUDAFTest {
         final SignalNoiseRatioUDAF snr = new SignalNoiseRatioUDAF();
 
         final ObjectInspector[] OIs = new ObjectInspector[] {
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
-                
ObjectInspectorFactory.getStandardListObjectInspector(PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
-        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) snr.getEvaluator(new 
SimpleGenericUDAFParameterInfo(
-            OIs, false, false));
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableDoubleObjectInspector),
+                ObjectInspectorFactory.getStandardListObjectInspector(
+                    
PrimitiveObjectInspectorFactory.writableIntObjectInspector)};
+        final SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator evaluator =
+                (SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator) 
snr.getEvaluator(
+                    new SimpleGenericUDAFParameterInfo(OIs, false, false));
         evaluator.init(GenericUDAFEvaluator.Mode.PARTIAL1, OIs);
-        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg = 
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
+        final 
SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer
 agg =
+                
(SignalNoiseRatioUDAF.SignalNoiseRatioUDAFEvaluator.SignalNoiseRatioAggregationBuffer)
 evaluator.getNewAggregationBuffer();
         evaluator.reset(agg);
 
-        final double[][] featuress = new double[][] { {5.1, 3.5, 1.4, 0.2}, 
{4.9, 3.d, 1.4, 0.2},
-                {7.d, 3.2, 4.7, 1.4}, {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 
2.5},
-                {5.8, 2.7, 5.1, 1.9}};
+        final double[][] featuress =
+                new double[][] {{5.1, 3.5, 1.4, 0.2}, {4.9, 3.d, 1.4, 0.2}, 
{7.d, 3.2, 4.7, 1.4},
+                        {6.4, 3.2, 4.5, 1.5}, {6.3, 3.3, 6.d, 2.5}, {5.8, 2.7, 
5.1, 1.9}};
 
-        final int[][] labelss = new int[][] { {1}, {1}, {1}, {1}, {1}, {1}}; 
// cause IllegalArgumentException
+        final int[][] labelss = new int[][] {{1}, {1}, {1}, {1}, {1}, {1}}; // 
cause IllegalArgumentException
 
         for (int i = 0; i < featuress.length; i++) {
             final List<IntWritable> labels = new ArrayList<IntWritable>();

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/trans/BinarizeLabelUDTFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/ftvec/trans/BinarizeLabelUDTFTest.java 
b/core/src/test/java/hivemall/ftvec/trans/BinarizeLabelUDTFTest.java
index cc55098..55b4e53 100644
--- a/core/src/test/java/hivemall/ftvec/trans/BinarizeLabelUDTFTest.java
+++ b/core/src/test/java/hivemall/ftvec/trans/BinarizeLabelUDTFTest.java
@@ -110,10 +110,8 @@ public class BinarizeLabelUDTFTest {
     @Test
     public void testSerialization() throws HiveException {
         final List<String> featureNames = Arrays.asList("positive", 
"negative", "features");
-        TestUtils.testGenericUDTFSerialization(
-            BinarizeLabelUDTF.class,
-            new ObjectInspector[] {
-                    PrimitiveObjectInspectorFactory.javaIntObjectInspector,
+        TestUtils.testGenericUDTFSerialization(BinarizeLabelUDTF.class,
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaIntObjectInspector,
                     PrimitiveObjectInspectorFactory.javaIntObjectInspector,
                     
ObjectInspectorFactory.getStandardConstantListObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames)},

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/trans/QuantifiedFeaturesUDTFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/ftvec/trans/QuantifiedFeaturesUDTFTest.java 
b/core/src/test/java/hivemall/ftvec/trans/QuantifiedFeaturesUDTFTest.java
index 9d5574f..5cabbb4 100644
--- a/core/src/test/java/hivemall/ftvec/trans/QuantifiedFeaturesUDTFTest.java
+++ b/core/src/test/java/hivemall/ftvec/trans/QuantifiedFeaturesUDTFTest.java
@@ -77,13 +77,12 @@ public class QuantifiedFeaturesUDTFTest {
 
     @Test
     public void testSerialization() throws HiveException {
-        TestUtils.testGenericUDTFSerialization(
-            QuantifiedFeaturesUDTF.class,
+        TestUtils.testGenericUDTFSerialization(QuantifiedFeaturesUDTF.class,
             new ObjectInspector[] {
                     ObjectInspectorUtils.getConstantObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaBooleanObjectInspector, true),
                     PrimitiveObjectInspectorFactory.javaStringObjectInspector,
-                    
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector}, new Object[][] {{
-                    WritableUtils.val(true), "aaa", 1.0}});
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector},
+            new Object[][] {{WritableUtils.val(true), "aaa", 1.0}});
     }
 }

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/ftvec/trans/VectorizeFeaturesUDFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/ftvec/trans/VectorizeFeaturesUDFTest.java 
b/core/src/test/java/hivemall/ftvec/trans/VectorizeFeaturesUDFTest.java
index cf28350..fb47c61 100644
--- a/core/src/test/java/hivemall/ftvec/trans/VectorizeFeaturesUDFTest.java
+++ b/core/src/test/java/hivemall/ftvec/trans/VectorizeFeaturesUDFTest.java
@@ -193,14 +193,13 @@ public class VectorizeFeaturesUDFTest {
     public void testSerialization() throws HiveException, IOException {
         final List<String> featureNames = Arrays.asList("q", "c");
 
-        TestUtils.testGenericUDFSerialization(
-            VectorizeFeaturesUDF.class,
+        TestUtils.testGenericUDFSerialization(VectorizeFeaturesUDF.class,
             new ObjectInspector[] {
                     
ObjectInspectorFactory.getStandardConstantListObjectInspector(
                         
PrimitiveObjectInspectorFactory.javaStringObjectInspector, featureNames),
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                    
PrimitiveObjectInspectorFactory.javaStringObjectInspector}, new Object[] {
-                    featureNames, 0.1d, "dayofweek"});
+                    PrimitiveObjectInspectorFactory.javaStringObjectInspector},
+            new Object[] {featureNames, 0.1d, "dayofweek"});
     }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/geospatial/HaversineDistanceUDFTest.java
----------------------------------------------------------------------
diff --git 
a/core/src/test/java/hivemall/geospatial/HaversineDistanceUDFTest.java 
b/core/src/test/java/hivemall/geospatial/HaversineDistanceUDFTest.java
index 5ec709b..b9bc402 100644
--- a/core/src/test/java/hivemall/geospatial/HaversineDistanceUDFTest.java
+++ b/core/src/test/java/hivemall/geospatial/HaversineDistanceUDFTest.java
@@ -36,20 +36,20 @@ public class HaversineDistanceUDFTest {
     @Test
     public void testKilometers1() throws HiveException, IOException {
         HaversineDistanceUDF udf = new HaversineDistanceUDF();
-        udf.initialize(new ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector});
+        udf.initialize(
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    
PrimitiveObjectInspectorFactory.javaDoubleObjectInspector});
 
         // Tokyo
         double lat1 = 35.6833d, lon1 = 139.7667d;
         // Osaka
         double lat2 = 34.6603d, lon2 = 135.5232d;
 
-        DoubleWritable result1 = udf.evaluate(new DeferredObject[] {new 
DeferredJavaObject(lat1),
-                new DeferredJavaObject(lon1), new DeferredJavaObject(lat2),
-                new DeferredJavaObject(lon2)});
+        DoubleWritable result1 = udf.evaluate(
+            new DeferredObject[] {new DeferredJavaObject(lat1), new 
DeferredJavaObject(lon1),
+                    new DeferredJavaObject(lat2), new 
DeferredJavaObject(lon2)});
         Assert.assertEquals(402.092d, result1.get(), 0.001d);
 
         udf.close();
@@ -58,22 +58,22 @@ public class HaversineDistanceUDFTest {
     @Test
     public void testKilometers2() throws HiveException, IOException {
         HaversineDistanceUDF udf = new HaversineDistanceUDF();
-        udf.initialize(new ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                ObjectInspectorUtils.getConstantObjectInspector(
-                    
PrimitiveObjectInspectorFactory.javaBooleanObjectInspector, false)});
+        udf.initialize(
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    ObjectInspectorUtils.getConstantObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaBooleanObjectInspector, false)});
 
         // Tokyo
         double lat1 = 35.6833d, lon1 = 139.7667d;
         // Osaka
         double lat2 = 34.6603d, lon2 = 135.5232d;
 
-        DoubleWritable result1 = udf.evaluate(new DeferredObject[] {new 
DeferredJavaObject(lat1),
-                new DeferredJavaObject(lon1), new DeferredJavaObject(lat2),
-                new DeferredJavaObject(lon2)});
+        DoubleWritable result1 = udf.evaluate(
+            new DeferredObject[] {new DeferredJavaObject(lat1), new 
DeferredJavaObject(lon1),
+                    new DeferredJavaObject(lat2), new 
DeferredJavaObject(lon2)});
         Assert.assertEquals(402.092d, result1.get(), 0.001d);
 
         udf.close();
@@ -82,13 +82,13 @@ public class HaversineDistanceUDFTest {
     @Test
     public void testMiles() throws HiveException, IOException {
         HaversineDistanceUDF udf = new HaversineDistanceUDF();
-        udf.initialize(new ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                ObjectInspectorUtils.getConstantObjectInspector(
-                    
PrimitiveObjectInspectorFactory.javaBooleanObjectInspector, true)});
+        udf.initialize(
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    ObjectInspectorUtils.getConstantObjectInspector(
+                        
PrimitiveObjectInspectorFactory.javaBooleanObjectInspector, true)});
 
         // Tokyo
         double lat1 = 35.6833d, lon1 = 139.7667d;
@@ -110,10 +110,8 @@ public class HaversineDistanceUDFTest {
         // Osaka
         double lat2 = 34.6603d, lon2 = 135.5232d;
 
-        TestUtils.testGenericUDFSerialization(
-            HaversineDistanceUDF.class,
-            new ObjectInspector[] {
-                    PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+        TestUtils.testGenericUDFSerialization(HaversineDistanceUDF.class,
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
                     PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/geospatial/Lat2TileYUDFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/geospatial/Lat2TileYUDFTest.java 
b/core/src/test/java/hivemall/geospatial/Lat2TileYUDFTest.java
index e4006db..e618fb2 100644
--- a/core/src/test/java/hivemall/geospatial/Lat2TileYUDFTest.java
+++ b/core/src/test/java/hivemall/geospatial/Lat2TileYUDFTest.java
@@ -35,12 +35,12 @@ public class Lat2TileYUDFTest {
     @Test
     public void testEvaluate() throws HiveException, IOException {
         Lat2TileYUDF udf = new Lat2TileYUDF();
-        udf.initialize(new ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaIntObjectInspector});
+        udf.initialize(
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaIntObjectInspector});
 
-        IntWritable result1 = udf.evaluate(new DeferredObject[] {new 
DeferredJavaObject(49.60055d),
-                new DeferredJavaObject(13)});
+        IntWritable result1 = udf.evaluate(
+            new DeferredObject[] {new DeferredJavaObject(49.60055d), new 
DeferredJavaObject(13)});
         Assert.assertEquals(2792, result1.get());
 
         udf.close();
@@ -48,10 +48,10 @@ public class Lat2TileYUDFTest {
 
     @Test
     public void testSerialization() throws HiveException, IOException {
-        TestUtils.testGenericUDFSerialization(Lat2TileYUDF.class, new 
ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaIntObjectInspector}, new 
Object[] {49.60055d,
-                13});
+        TestUtils.testGenericUDFSerialization(Lat2TileYUDF.class,
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaIntObjectInspector},
+            new Object[] {49.60055d, 13});
     }
 
 }

http://git-wip-us.apache.org/repos/asf/incubator-hivemall/blob/c4036695/core/src/test/java/hivemall/geospatial/Lon2TileXUDFTest.java
----------------------------------------------------------------------
diff --git a/core/src/test/java/hivemall/geospatial/Lon2TileXUDFTest.java 
b/core/src/test/java/hivemall/geospatial/Lon2TileXUDFTest.java
index 6191321..2e7705d 100644
--- a/core/src/test/java/hivemall/geospatial/Lon2TileXUDFTest.java
+++ b/core/src/test/java/hivemall/geospatial/Lon2TileXUDFTest.java
@@ -35,12 +35,12 @@ public class Lon2TileXUDFTest {
     @Test
     public void testEvaluate() throws HiveException, IOException {
         Lon2TileXUDF udf = new Lon2TileXUDF();
-        udf.initialize(new ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaIntObjectInspector});
+        udf.initialize(
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaIntObjectInspector});
 
-        IntWritable result1 = udf.evaluate(new DeferredObject[] {new 
DeferredJavaObject(11.01296d),
-                new DeferredJavaObject(13)});
+        IntWritable result1 = udf.evaluate(
+            new DeferredObject[] {new DeferredJavaObject(11.01296d), new 
DeferredJavaObject(13)});
         Assert.assertEquals(4346, result1.get());
 
         udf.close();
@@ -48,10 +48,10 @@ public class Lon2TileXUDFTest {
 
     @Test
     public void testSerialization() throws HiveException, IOException {
-        TestUtils.testGenericUDFSerialization(Lon2TileXUDF.class, new 
ObjectInspector[] {
-                PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
-                PrimitiveObjectInspectorFactory.javaIntObjectInspector}, new 
Object[] {11.01296d,
-                13});
+        TestUtils.testGenericUDFSerialization(Lon2TileXUDF.class,
+            new ObjectInspector[] 
{PrimitiveObjectInspectorFactory.javaDoubleObjectInspector,
+                    PrimitiveObjectInspectorFactory.javaIntObjectInspector},
+            new Object[] {11.01296d, 13});
     }
 
 }


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